What is the Latin word for valiantly?

The usual Latin words for “valiantly” are fortis, animōsus, strēnuus; also ācer, intrepidus, impavidus. The right choice depends on the sense; see the distinctions below.

English → Latin

“valiantly” in Latin

fortisstrong, powerful; firm, resolute, steadfast, stout; courageous, brave animōsusspirited; full of air, airy; full of life, alive, living, animated strēnuusbrisk, nimble, quick, prompt, active; vigorous, strenuous ācersharp, sour, bitter, pungent; keen, sharp, acute, sagacious; energetic, active, vigorous intrepidusfearless, unshaken, undaunted, intrepid impavidusfearless, undaunted, intrepid

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

valiantly

fortiter: forti animo: animose: strenue: acri or alacri animo: intrepide, impavide (Liv.).

Quick answer

What is the Latin word for valiantly?: The usual Latin words for “valiantly” are fortis, animōsus, strēnuus; also ācer, intrepidus, impavidus. 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.