LATIN DICTIONARYLexicon Latīnum
English → Latin

“falsify” in Latin

The English word falsify itself goes back to Latin fallō, through falsificō.

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

falsify
corrumpere (to corrupt by an internal change of quality): vitiare (to make faulty; pecunias, merces): adulterare (to falsify by the admixture of what is not genuine; e.g., numos, merces): interpolare (to give anything a good appearance by dressing it up, as it were, by spurious additions; merces): transcribere (to falsify in copying). To falsify documents, tabulas corrumpere, vitiare (general terms); tabulas interpolare (by erasing letters, and introducing others neatly, so as to be likely to avoid detection); tabulas interlinere (to erase [PROP. in wax] words from between other words; or to erase words so completely as to conceal, if possible, the fact of any having originally stood there); (The words are found in this connection and order.) tabulas corrumpere atque interlinere; tabulas transcribere (to falsify it in transcription; write it wrong): to falsify a will; Vid: “to FORGE a will.”
To falsify one’s word, etc., fidem fallere, mutare, frustrari, non servare: fidem frangere, violare.

Quick answer

What is the Latin word for falsify?
The usual Latin words for “falsify” are corrumpō, vitiō, adulterō; also interpolō, trānscrībō, pecūnia. 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.