LATIN DICTIONARYLexicon Latīnum
verbfirst conjugation

affirmō

affirmō (present infinitive affirmāre, perfect active affirmāvī, supine affirmātum)
Classical[afˈfɪr.moː]Ecclesiastical[afˈfir.mo]

Meaning

  1. to present (something) as fixed, firm, or true; affirm, assert, maintain
  2. to strengthen, confirm, corroborate
  3. figurativelyto make clear

Latīnē defined in Latin in our graded readers

Choosing the right word Döderlein's Latin Synonyms

Dicere · Aio · Inquam · Asseverare · Affirmare · Contendere · Fari · Fabulari

1. Dicere denotes to say, as conveying information, in reference to the hearer, in opp. to tacere, like the neutral word loqui. Cic. Rull. ii. 1. Ver. ii. 1, 71, 86. Plin. Ep. iv. 20. vii. 6, like λέγειν; but aio expresses an affirmation, with reference to the speaker, in opp. to nego. Cic. Off. iii. 23. Plaut. Rud. ii. 4, 14. Terent. Eun. ii. 2, 21, like φάναι. 2. Ait is in construction with an indirect form of speech, and therefore generally governs an infinitive; whereas inquit is in construction with a direct form of speech, and therefore admits an indicative, imperative, or conjunctive. 3. Aio denotes the simple affirmation of a proposition by merely expressing it, whereas asseverare, affirmare, contendere, denote an emphatic affirmation; asseverare is to affirm in earnest, in opp. to a jocular, or even light affirmation, jocari. Cic. Brut. 85; affirmare, to affirm as certain, in opp. to doubts and rumors, dubitare, Divin. ii. 3, 8; contendere, to affirm against contradiction, and to maintain one’s opinion, in opp. to yielding it up, or renouncing it. 4. Dicere (δεῖξαι) denotes to say, without any accessory notion, whereas loqui (λακεῖν), as a transitive verb, with the contemptuous accessory notion that that which is said is mere idle talk. Cic. Att. xiv. 4. Horribile est quæ loquantur, quæ minitentur. 5. Loqui denotes speaking in general; fabulari, a good-humored, or, at least, pleasant mode of speaking, to pass away the time, in which no heed is taken of the substance and import of what is said, like λαλεῖν; lastly, dicere, as a neuter verb, denotes a speech prepared according to the rules of art, a studied speech, particularly from the rostrum, like λέγειν. Liv. xlv. 39. Tu, centurio, miles, quid de imperatore Paulo senatus decreverit potius quam quid Sergio Galba fabuletur audi, et hoc dicere me potius quam illum audi; ille nihil præterquam loqui, et id ipsum maledice et maligne didicit. Cic. Brut. 58. Scipio sane mihi bene et loqui videtur et dicere. Orat. iii. 10. Neque enim conamur docere eum dicere qui loqui nesciat. Orat. 32. Muren. 34, 71. Suet. Cl. 4. Qui tam ἀσαφῶς loquatur, qui possit quum declamat σαφῶς dicere quæ dicenda sunt non video. 6. Fari (φάναι) denotes speaking, as the mechanical use of the organs of speech to articulate sounds and words, nearly in opp. to infantem esse; whereas loqui (λακεῖν), as the means of giving utterance to one’s thoughts, in opp. to tacere. And as fari may be sometimes limited to the utterance of single words, it easily combines with the image of an unusual, imposing, oracular brevity, as in the decrees of fate, fati; whereas loqui, as a usual mode of speaking, is applicable to excess in speaking, loquacitas. (iv. 1.)

Conjugation conjugation 1

active indicative
formpresentimperfectfutureperfectpluperfectfut. perfect
1st sg.affirmōaffirmābamaffirmābōaffirmāvīaffirmāveramaffirmāverō
affirmārō
2nd sg.affirmāsaffirmābāsaffirmābisaffirmāvistī
affirmāstī
affirmāverās
affirmārās
affirmāveris
3rd sg.affirmataffirmābataffirmābitaffirmāvitaffirmāverat
affirmārat
affirmāverit
affirmārit
1st pl.affirmāmusaffirmābāmusaffirmābimusaffirmāvimusaffirmāverāmusaffirmāverimus
affirmārimus
2nd pl.affirmātisaffirmābātisaffirmābitisaffirmāvistis
affirmāstis
affirmāverātis
affirmārātis
affirmāveritis
affirmāritis
3rd pl.affirmantaffirmābantaffirmābuntaffirmāvērunt
affirmāvēre, affirmārunt
affirmāverant
affirmārant
affirmāverint
affirmārint
active subjunctive
active subjunctive
formpresentimperfectperfectpluperfect
1st sg.affirmemaffirmāremaffirmāverim
affirmārim
affirmāvissem
affirmāssem
2nd sg.affirmēsaffirmārēsaffirmāverīsaffirmāvissēs
affirmāssēs
3rd sg.affirmetaffirmāretaffirmāverit
affirmārit
affirmāvisset
affirmāsset
1st pl.affirmēmusaffirmārēmusaffirmāverīmus
affirmārīmus
affirmāvissēmus
affirmāssēmus
2nd pl.affirmētisaffirmārētisaffirmāverītis
affirmārītis
affirmāvissētis
affirmāssētis
3rd pl.affirmentaffirmārentaffirmāverint
affirmārint
affirmāvissent
affirmāssent
passive indicative
passive indicative
formpresentimperfectfuture
1st sg.affirmoraffirmābaraffirmābor
2nd sg.affirmāris
affirmāre
affirmābāris
affirmābāre
affirmāberis
affirmābere
3rd sg.affirmāturaffirmābāturaffirmābitur
1st pl.affirmāmuraffirmābāmuraffirmābimur
2nd pl.affirmāminīaffirmābāminīaffirmābiminī
3rd pl.affirmanturaffirmābanturaffirmābuntur
passive subjunctive
passive subjunctive
formpresentimperfect
1st sg.affirmeraffirmārer
2nd sg.affirmēris
affirmēre
affirmārēris
affirmārēre
3rd sg.affirmēturaffirmārētur
1st pl.affirmēmuraffirmārēmur
2nd pl.affirmēminīaffirmārēminī
3rd pl.affirmenturaffirmārentur
imperative
imperative
formactivepassive
pres. 2nd sg.affirmāaffirmāre
pres. 2nd pl.affirmāteaffirmāminī
fut. 2nd sg.affirmātōaffirmātor
fut. 3rd sg.affirmātōaffirmātor
fut. 2nd pl.affirmātōte—
fut. 3rd pl.affirmantōaffirmantor
infinitives & participles
infinitives & participles
formactivepassive
present infinitiveaffirmāreaffirmārī
perfect infinitiveaffirmāvisse
affirmāsse
affirmātum esse
future infinitiveaffirmātūrum esseaffirmātum īrī
present participleaffirmāns—
perfect participle—affirmātus
affirmāta, affirmātā, affirmātae, affirmātam, affirmātārum, affirmātās, affirmātī, affirmātōrum, affirmātōs
future participleaffirmātūrus
affirmātūra, affirmātūrā, affirmātūrae, affirmātūram, affirmātūrārum, affirmātūrās, affirmātūre, affirmātūrī, affirmātūrīs, affirmātūrō, affirmātūrōrum, affirmātūrōs, affirmātūrum
affirmandus
affirmanda, affirmandā, affirmandae, affirmandam, affirmandārum, affirmandās, affirmande, affirmandīs, affirmandōrum, affirmandōs
gerundaffirmandī, affirmandō, affirmandumsupineaffirmātum, affirmātū

Phrases from Meissner's Latin Phrase-Book

illud pro certo affirmare licet
this much I can vouch for.

af-firmo (better adf-), āvi, ātum, 1, v. a.
I. To present a thing in words, as fixed, firm, i. e. certain, true; to assert, maintain, aver, declare, asseverate, affirm: dicendum est mihi, sed ita, nihil ut adfirmem, quaeram omnia, Cic. Div. 2, 3; so id. Att. 13, 23; id. Brut. 1, 1: jure jurando, Liv. 29, 23: quidam plures Deo ortos adfirmant, Tac. G. 2; cf. id. Agr. 10: adfirmavit non daturum se, he protested that he would give nothing, Suet. Aug. 42.—Impers.: atque affirmatur, Tac. H. 2, 49.—Hence,
II. To give confirmation of the truth of a thing, to strengthen, to confirm, corroborate, sanction: adfirmare spem alicui, Liv. 1, 1: opinionem, id. 32, 35: dicta alicujus, id. 28, 2: aliquid auctoritate sua, id. 26, 24: populi Romani virtutem armis, Tac. H. 4, 73: secuta anceps valetudo iram Deūm adfirmavit, id. A. 14, 22.—Hence, * affirmanter (adf-), adv. (of the absol. P. a. affirmans), with assurance or certainty, assuredly: praedicere aliquid, Gell. 14, 1, 24; and: af-firmātē (adf-), adv. (of the absol. P. a. affirmatus), with asseveration, with assurance, certainly, assuredly, positively: quod adfirmate, quasi Deo teste promiserit, id tenendum est, Cic. Off. 3, 29.—Sup.: adfirmatissime scribere aliquid, Gell. 10, 12, 9.

Origins

  1. Proto-Indo-European*h₂éd
  2. Proto-Italic*ad
  3. Proto-Italic*ad-
  4. Latinaffirmō

Proto-Indo-European *dʰer- Proto-Indo-European *-mos Proto-Indo-European *dʰermos Proto-Italic *θermos Proto-Italic *fermos Latin firmus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin firmō Latin affirmō From ad- (“to, towards, at”) + firmō (“strengthen, fortify”).

Descendants
  • Catalanafirmar
  • Englishaffirm
  • Frenchaffirmer
  • Italianaffermare
  • Portugueseafirmar
  • Romanianafirma
  • Spanishafirmar
  • Asturianafirmar
  • Galicianafirmar

In English words that came into English from affirmō

  • affirmaffirmare
  • affirmationaffirmare
  • affirmativeaffirmativus
  • affirmantaffirmans
  • affirmatumaffirmatum
  • affirmatioaffirmātiō

Quick answers

What does affirmō mean in Latin?
affirmō, a verb, means “to present (something) as fixed, firm, or true; affirm, assert, maintain; to strengthen, confirm, corroborate”.
What are the principal parts of affirmō?
affirmō, affirmāre, affirmāvī, affirmātum (first conjugation).
How do you pronounce affirmō?
In classical Latin, [afˈfɪr.moː]; in ecclesiastical (church) Latin, [afˈfir.mo].
Where does affirmō come from?
Proto-Indo-European *h₂éd → Proto-Italic *ad → Proto-Italic *ad- → Latin affirmō.
Which English words come from affirmō?
English words that go back to Latin affirmō include affirm, affirmation, affirmant, affirmatum, affirmative and affirmatio.