What is the Latin word for powerfully?

The usual Latin words for “powerfully” are praevalidus, vehemēns, efficienter; also efficāx. The right choice depends on the sense; see the distinctions below.

English → Latin

“powerfully” in Latin

praevalidusvery strong or powerful; prevalent, prevailing vehemēnsvery eager; impetuous, ardent, furious; vehement; emphatic efficienterefficiently, effectively efficāxefficacious, effectual, powerful, efficient

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

powerfully

cum magna potentia: praevalide: vehementer: efficienter: efficaciter (Plin.).

Quick answer

What is the Latin word for powerfully?: The usual Latin words for “powerfully” are praevalidus, vehemēns, efficienter; also efficāx. 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.