LATIN DICTIONARYLexicon Latīnum
English → Latin

“confirmation” in Latin

The English word confirmation itself goes back to Latin firmō, through cōnfirmātiō.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

confirmation
confirmatio: auctoritas (the consent, especially of the Senate): fides (certainty): affirmatio (affirmation): This news requires confirmation, *fama nondum certa est: rem certis auctoribus non comperi (of a person relating; after Cic., Att: 14, 8, 1): the confirmation by auspices is still required, auspiciorum adhuc fides exigitur: for the better confirmation of the matter, *ut res majorem vim habeat.
As religious act, confirmatio (Scriptores Ecclesiastici); *sollemnis ritus, quo adolescentes utriusque sexus doctrinam Christianam, in quam ab ineunte aetate imbuti sunt, coram omnibus profitentur.

Quick answer

What is the Latin word for confirmation?
The usual Latin words for “confirmation” are cōnfirmātiō, auctōritās, fidēs; also affirmātiō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.