The conjunction ac is a fundamental connecting word in Latin that joins words, phrases, or clauses of equal importance. While often translated simply as "and," ac carries a slightly more emphatic sense than the basic conjunction et, suggesting "and also" or "and in addition." This word becomes particularly important in conversational Latin where speakers need to link ideas smoothly and naturally.
Definition: ac is a coordinating conjunction meaning "and," "and also," or "and in addition." After comparatives, it can mean "than." It cannot be used before vowels or h; in these cases, atque is used instead.
FAQ Schema Question: What does "ac" mean in Latin? Answer: "Ac" is a Latin conjunction meaning "and," "and also," or "and in addition." It connects words or phrases of equal importance and is slightly more emphatic than the simple "et." After comparatives, it means "than."
In this lesson, ac will appear in various positions within conversational exchanges, demonstrating its flexibility in connecting ideas, adding emphasis, and creating natural flowing dialogue. You'll see it joining nouns, verbs, phrases, and complete thoughts, just as Roman speakers would have used it in daily conversation.
Educational Schema Type: Language Learning Material Subject: Latin Language Level: Beginner to Intermediate Focus: Conversational Latin Patterns Topic: Conjunction "ac" (and, and also)
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ac is more emphatic than et, suggesting "and also" or "and in addition" -
Never use ac before vowels or h - use atque instead -
After comparatives, ac means "than" -
Common in the phrase simul ac meaning "as soon as" -
Essential for creating natural, flowing conversational Latin
36.1 Quid what tū you hodiē today māne in-the-morning ēdistī did-eat ac and bibistī did-drink?
36.2 Pānem bread ēdī I-ate ac and lac milk bibī I-drank.
36.3 Mārcus Marcus ac and Lūcia Lucia ad to forum forum eunt go.
36.4 Vīsne do-you-want venīre to-come mēcum with-me ac and emere to-buy aliquid something?
36.5 Certē certainly volō I-want venīre to-come ac and tēcum with-you tempus time agere to-spend!
36.6 Pater father meus my doctus learned ac and sapiens wise est is.
36.7 Simul as-soon ac as domum home vēnī I-came, cēnāre to-dine coepī I-began.
36.8 Hic this liber book melior better est is ac than ille that-one.
36.9 Quis who venit comes ad to convīvium dinner-party nostrum our, Gaius Gaius ac and Claudia Claudia?
36.10 Ambō both veniunt come ac and gaudent rejoice nōs us vidēre to-see.
36.11 Crās tomorrow studēbō I-will-study linguam language Latīnam Latin ac and Graecam Greek.
36.12 Haec this puella girl pulchrior more-beautiful ac than prūdentior more-prudent est is quam than illa that-one.
36.13 Venī come celeriter quickly ac and sedē sit mēcum with-me!
36.14 Nōn not sōlum only cantat he-sings sed but etiam also saltat he-dances ac and rīdet laughs.
36.15 Ubi where sunt are librī books tuī your ac and stilus pen tuus your?
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36.1 Quid tū hodiē māne ēdistī ac bibistī? What did you eat and drink this morning?
36.2 Pānem ēdī ac lac bibī. I ate bread and drank milk.
36.3 Mārcus ac Lūcia ad forum eunt. Marcus and Lucia are going to the forum.
36.4 Vīsne venīre mēcum ac emere aliquid? Do you want to come with me and buy something?
36.5 Certē volō venīre ac tēcum tempus agere! Certainly I want to come and spend time with you!
36.6 Pater meus doctus ac sapiens est. My father is learned and wise.
36.7 Simul ac domum vēnī, cēnāre coepī. As soon as I came home, I began to dine.
36.8 Hic liber melior est ac ille. This book is better than that one.
36.9 Quis venit ad convīvium nostrum, Gaius ac Claudia? Who is coming to our dinner party, Gaius and Claudia?
36.10 Ambō veniunt ac gaudent nōs vidēre. Both are coming and are happy to see us.
36.11 Crās studēbō linguam Latīnam ac Graecam. Tomorrow I will study Latin and Greek.
36.12 Haec puella pulchrior ac prūdentior est quam illa. This girl is more beautiful and prudent than that one.
36.13 Venī celeriter ac sedē mēcum! Come quickly and sit with me!
36.14 Nōn sōlum cantat sed etiam saltat ac rīdet. He not only sings but also dances and laughs.
36.15 Ubi sunt librī tuī ac stilus tuus? Where are your books and your pen?
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36.1 Quid tū hodiē māne ēdistī ac bibistī?
36.2 Pānem ēdī ac lac bibī.
36.3 Mārcus ac Lūcia ad forum eunt.
36.4 Vīsne venīre mēcum ac emere aliquid?
36.5 Certē volō venīre ac tēcum tempus agere!
36.6 Pater meus doctus ac sapiens est.
36.7 Simul ac domum vēnī, cēnāre coepī.
36.8 Hic liber melior est ac ille.
36.9 Quis venit ad convīvium nostrum, Gaius ac Claudia?
36.10 Ambō veniunt ac gaudent nōs vidēre.
36.11 Crās studēbō linguam Latīnam ac Graecam.
36.12 Haec puella pulchrior ac prūdentior est quam illa.
36.13 Venī celeriter ac sedē mēcum!
36.14 Nōn sōlum cantat sed etiam saltat ac rīdet.
36.15 Ubi sunt librī tuī ac stilus tuus?
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The conjunction ac follows specific rules that English speakers must understand:
1. Basic Function -
Coordinating conjunction joining elements of equal grammatical value -
More emphatic than et (simple "and") -
Suggests addition or emphasis: "and also," "and in addition"
2. Phonetic Restriction -
NEVER use ac before vowels (a, e, i, o, u) or h -
Use atque instead before vowels and h -
Example: "pater atque amīcus" NOT "pater ac amīcus"
3. After Comparatives -
ac can mean "than" after comparative adjectives -
Example: "melior ac ille" = "better than that one" -
Alternative to quam in comparisons
4. Common Phrases -
simul ac = "as soon as" (with indicative or subjunctive) -
īdem ac = "the same as" -
alius ac = "different from"
1. Using ac before vowels -
WRONG: "māter ac ego" -
CORRECT: "māter atque ego"
2. Confusing ac with et -
et = simple "and" (neutral) -
ac = "and also" (emphatic) -
-que = "and" (enclitic, attached to second word)
3. Misusing ac in comparisons -
After comparatives, ac means "than," not "and" -
"doctior ac tū" = "more learned than you"
4. Word order errors -
ac comes between the elements it connects -
Cannot begin a sentence (unlike English "And...")
Step 1: Identify what you're connecting -
Two nouns: "Mārcus ac Lūcia" -
Two verbs: "cantat ac saltat" -
Two adjectives: "bonus ac magnus"
Step 2: Check the following word -
Starts with consonant? Use ac -
Starts with vowel or h? Use atque
Step 3: Consider emphasis -
Need simple connection? Consider et -
Want emphasis? Use ac -
Need close connection? Use -que
Step 4: Check for comparatives -
Is first element comparative? ac might mean "than" -
Example: "fortior ac leō" = "stronger than a lion"
Form: Indeclinable conjunction Function: Coordinating conjunction Meanings: -
"and" (emphatic) -
"and also" -
"and in addition" -
"than" (after comparatives)
Restrictions: Never before vowels or h Common compounds: simul ac, īdem ac, alius ac
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For English speakers learning conversational Latin, understanding ac requires appreciating how Romans valued rhetorical precision. While English often uses "and" for all connections, Latin speakers had multiple options:
Social Distinctions Romans chose conjunctions carefully to signal relationships and emphasis. Using ac instead of et could indicate that the second element deserved special attention - important in a hierarchical society where proper acknowledgment mattered.
Rhetorical Effect In public speaking and conversation, ac created a slight pause or emphasis, drawing attention to what followed. Cicero and other orators used this for rhetorical effect, building momentum through carefully chosen conjunctions.
Conversational Flow In daily conversation, ac helped Romans create natural speech rhythms. The phonetic restriction (not before vowels) actually aided fluency, preventing awkward sound combinations that might interrupt smooth speech.
Modern Usage Today's Latin speakers maintain these distinctions. In Vatican Latin or academic discourse, ac still signals conscious emphasis rather than simple connection. Understanding this helps modern learners sound more natural and sophisticated.
Comparison with English English speakers often struggle with Latin's multiple words for "and" because English uses one word for all contexts. Think of ac as similar to "and also" or "as well as" - it adds weight to the connection, suggesting the speaker considers both elements important enough to emphasize their relationship.
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From Erasmus, Colloquia Familiaria, "Convivium Religiosum"
Part F-A (Interleaved Text)
Eusebius Eusebius rogat asks: "Quid what dē about hīs these flōribus flowers sentīs do-you-think, quī which occulōs eyes ac and nārēs nostrils tam so suāviter sweetly afficiunt affect?" Tīmotheus Timothy respondet replies: "Nōn not modo only vīsū by-sight ac and odōre by-smell dēlectant they-delight, sed but etiam also nōs us admonent they-remind dē about dīvīnā divine beneficentiā kindness, quae which omnia all-things ad for nostram our ūtilitātem use ac and voluptātem pleasure condidit created."
"Quid dē hīs flōribus sentīs, quī oculōs ac nārēs tam suāviter afficiunt?" Tīmotheus respondet: "Nōn modo vīsū ac odōre dēlectant, sed etiam nōs admonent dē dīvīnā beneficentiā, quae omnia ad nostram ūtilitātem ac voluptātem condidit."
"What do you think about these flowers, which affect our eyes and nostrils so sweetly?" Timothy replies: "They not only delight by sight and smell, but also remind us of divine kindness, which created all things for our use and pleasure."
Erasmus demonstrates sophisticated use of ac in this religious dialogue. Notice how ac connects parallel body parts (oculōs ac nārēs), parallel ablatives (vīsū ac odōre), and parallel purposes (ūtilitātem ac voluptātem). This creates rhetorical balance typical of humanist Latin, where careful parallelism reflects the harmony of God's creation being discussed.
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oculōs ac nārēs: Direct objects connected by ac, showing affected body parts -
vīsū ac odōre: Ablatives of means, parallel construction -
ūtilitātem ac voluptātem: Accusatives after ad, showing dual purpose -
Note how Erasmus uses ac for closely related pairs, creating elegant balance -
The conjunction emphasizes the completeness of sensory experience and divine purpose
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This is a charming personal correspondence between Marcus and Gaius demonstrating classical Latin letter conventions and everyday language.
Opening (36.16-36.17) - S.P.D. = Salutem Plurimam Dicit (sends many greetings) - Formal greeting with vocatives of endearment (amīce cārissime)
Body (36.18-36.27) - Exchange of personal news (marriage, new house) - Polite inquiries about family - Expressions of affection and mutual concern - Request for frequent correspondence
Closing (36.28-36.30) - Formal farewell (Valē) - Dating formula (Datum Rōmae Kalendīs Aprīlibus) - Delivery notation (trāditum tabellāriō)
- Perfect infinitives: dūxisse, ēmisse (reported speech) - Future tense: vīsitābis, veniam, manēbō, scrībam, nūntiābō - Subjunctive: ut valeās (purpose clause) - Datives: mihi, tibi (indirect objects) - Ablatives: Rōmae (locative), Kalendīs Aprīlibus (temporal)
This passage illustrates how Romans maintained friendships through written correspondence with warmth and formality. ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
36.16 Mārcus Gāiō suō S.P.D.: "Quid agis, mī amīce cārissime ac fīdēlissime?" Marcus sends greetings to his Gaius: "How are you doing, my dearest and most faithful friend?"
36.17 Gaius rescrībit: "Bene valeō ac tē valdē dēsīderō." Gaius writes back: "I am well and miss you greatly."
36.18 "Audīvī tē nūper uxōrem dūxisse ac novam domum ēmisse." "I heard that you recently married and bought a new house."
36.19 "Vērum est! Puella pulchra ac prūdēns mihi nūpsit." "It's true! A beautiful and prudent girl married me."
36.20 "Quandō mē ac meam familiam vīsitābis?" "When will you visit me and my family?"
36.21 "Proximō mēnse veniam ac tēcum plūrēs diēs manēbō." "I'll come next month and stay with you for several days."
36.22 "Pater tuus ac māter quōmodo sē habent?" "How are your father and mother doing?"
36.23 "Uterque bene valet ac tē salūtat." "Each is well and sends you greetings."
36.24 "Scrībe mihi saepius ac dē rēbus tuīs nārrā!" "Write to me more often and tell me about your affairs!"
36.25 "Certē scrībam ac omnia quae accidunt tibi nūntiābō." "I'll certainly write and announce to you everything that happens."
36.26 "Frāter meus ac soror mea tē memoriā tenent." "My brother and sister remember you."
36.27 "Grātiās agō! Eōs quoque videō ac amō." "Thank you! I see and love them too."
36.28 "Valē, amīce optime ac fīdēlissime!" "Farewell, best and most faithful friend!"
36.29 "Et tū valē ac cūrā ut valeās!" "And you farewell and take care to be well!"
36.30 "Datum Rōmae Kalendīs Aprīlibus ac trāditum tabellāriō fidō." "Given at Rome on the Kalends of April and delivered to a trusted courier."
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36.16 Mārcus Gāiō suō S.P.D.: "Quid agis, mī amīce cārissime ac fīdēlissime?"
36.17 Gaius rescrībit: "Bene valeō ac tē valdē dēsīderō."
36.18 "Audīvī tē nūper uxōrem dūxisse ac novam domum ēmisse."
36.19 "Vērum est! Puella pulchra ac prūdēns mihi nūpsit."
36.20 "Quandō mē ac meam familiam vīsitābis?"
36.21 "Proximō mēnse veniam ac tēcum plūrēs diēs manēbō."
36.22 "Pater tuus ac māter quōmodo sē habent?"
36.23 "Uterque bene valet ac tē salūtat."
36.24 "Scrībe mihi saepius ac dē rēbus tuīs nārrā!"
36.25 "Certē scrībam ac omnia quae accidunt tibi nūntiābō."
36.26 "Frāter meus ac soror mea tē memoriā tenent."
36.27 "Grātiās agō! Eōs quoque videō ac amō."
36.28 "Valē, amīce optime ac fīdēlissime!"
36.29 "Et tū valē ac cūrā ut valeās!"
36.30 "Datum Rōmae Kalendīs Aprīlibus ac trāditum tabellāriō fidō."
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In Roman letter-writing, ac served specific functions that created the warm, personal tone appropriate to correspondence between friends:
1. Joining Paired Superlatives -
"amīce cārissime ac fīdēlissime" (dearest and most faithful friend) -
Creates emotional emphasis through accumulation -
Shows the writer values multiple qualities in the recipient
2. Connecting Parallel Actions -
"uxōrem dūxisse ac domum ēmisse" (married and bought a house) -
Links life events of similar importance -
More emphatic than simple et
3. In Formulaic Closings -
"valē ac cūrā ut valeās" (farewell and take care) -
Traditional pairing in letter endings -
ac adds warmth to standard formula
4. Joining Family Members -
"pater tuus ac māter" (your father and mother) -
"frāter meus ac soror mea" (my brother and sister) -
Shows equal affection/importance
5. In Indirect Statement -
"audīvī tē... dūxisse ac... ēmisse" -
Both infinitives share the accusative subject tē -
ac maintains parallel structure
Example 1: "Datum Rōmae Kalendīs Aprīlibus ac trāditum tabellāriō fidō" -
Two parallel perfect passive participles -
Both modify implied "epistula" (letter) -
ac emphasizes dual action: written AND delivered
Example 2: "Eōs quoque videō ac amō" -
Two first-person verbs -
Same direct object (eōs) -
ac shows actions are equally heartfelt
Opening Formulas: -
Name + dative + S.P.D. (salūtem plūrimam dīcit) -
Often followed by question with ac
Body Patterns: -
News items connected by ac -
Parallel infinitives in indirect statement -
Questions about multiple topics
Closing Patterns: -
Multiple imperatives with ac -
Good wishes connected by ac -
Date and delivery information
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This lesson is part of the Latinum Institute Latin Reading Course, a comprehensive series designed specifically for autodidacts learning conversational Latin. The course, curated by Evan der Millner BA MA (Cantab. NZ, London), represents over 18 years of innovation in online language learning materials, with the Latinum Institute establishing its presence in 2006.
The Latinum Institute's approach, detailed at latinum.substack.com and latinum.org.uk, emphasizes natural language acquisition through extensive comprehensible input. Rather than focusing solely on grammar rules, these lessons immerse learners in authentic Latin patterns through carefully scaffolded examples that progress from highly supported interlinear texts to independent Latin reading.
Each lesson in this series provides: -
Granular interlinear support in Part A, allowing complete beginners to access complex Latin structures 36.16 Mārcus Marcus Gāiō to-Gaius suō his S.P.D. sends-greetings: "Quid what agis are-you-doing, mī my amīce friend cārissime dearest ac and fīdēlissime most-faithful?"
36.17 Gaius Gaius rescrībit writes-back: "Bene well valeō I-am ac and tē you valdē greatly dēsīderō I-miss."
36.18 "Audīvī I-heard tē you nūper recently uxōrem wife dūxisse to-have-married ac and novam new domum house ēmisse to-have-bought."
36.19 "Vērum true est it-is! Puella girl pulchra beautiful ac and prūdēns prudent mihi to-me nūpsit married."
36.20 "Quandō when mē me ac and meam my familiam family vīsitābis will-you-visit?"
36.21 "Proximō next mēnse month veniam I-will-come ac and tēcum with-you plūrēs several diēs days manēbō I-will-stay."
36.22 "Pater father tuus your ac and māter mother quōmodo how sē themselves habent have?"
36.23 "Uterque each bene well valet is ac and tē you salūtat greets."
36.24 "Scrībe write mihi to-me saepius more-often ac and dē about rēbus affairs tuīs your nārrā tell!"
36.25 "Certē certainly scrībam I-will-write ac and omnia all-things quae which accidunt happen tibi to-you nūntiābō I-will-announce."
36.26 "Frāter brother meus my ac and soror sister mea my tē you memoriā in-memory tenent hold."
36.27 "Grātiās thanks agō I-give! Eōs them quoque also videō I-see ac and amō I-love."
36.28 "Valē farewell, amīce friend optime best ac and fīdēlissime most-faithful!"
36.29 "Et and tū you valē farewell ac and cūrā take-care ut that valeās you-be-well!"
36.30 "Datum given Rōmae at-Rome Kalendīs on-Kalends Aprīlibus of-April ac and trāditum delivered tabellāriō to-courier fidō trusted."
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