/ Thesaurus / O Synonyms of old french Find synonyms for: Noun1. Old French, Frenchusage: the earliest form of the French language; 9th to 15th centuryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language