LATIN DICTIONARYLexicon Latīnum
English → Latin

“energy” in Latin

The English word energy itself goes back to Latin energīa.

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

energy
vis (force, emphasis): virtus: vigor (life and spirit, both of animate and inanimate things): gravitas (weight, energy of words, etc., verborum, sententiarum): fervor (heat): acrimonia (pungent or stinging energy, rare): impetus (energy attack in a speech, aliter in oratione nec impetus ullus nec vis esse potest, Cic.): robur: nervi (strength of mind, energy of character). Anything requires all your energy of character, aliquid tuorum est nervorum (Cic.). The energy of a speaker, virtus oratoris: vis oratoris, dicentis: virtus oratoria: with something of energy, cum quadam virtute. What energy there is in that book! quantum in illo libro vigoris est! (Sen.) A man of energy, vir fortis, acer.

Quick answer

What is the Latin word for energy?
The usual Latin words for “energy” are volō, virtūs, vigor; also gravitās, fervor, ācrimōnia. 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.