English Etymology From Latin affirmans, present participle of affirmo. Noun affirmant (plural affirmants) Someone who affirms or asserts. (law) Someone who affirms, when taking an oath. Translations one who affirms Portuguese: afirmante m or f References “affirmant”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. French Pronunciation IPA(key): /a.fiʁ.mɑ̃/ Participle affirmant present participle of affirmer Further reading “affirmant”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012. Latin Verb affirmant third-person plural present active indicative of affirmōWikiwand - on Seamless Wikipedia browsing. On steroids.