What is the Latin word for lukewarm?

The usual Latin words for “lukewarm” are tepidus, tepeō, faciendus; also Caelius, tepēscō, tepefaciō. The right choice depends on the sense; see the distinctions below.

English → Latin

“lukewarm” in Latin

tepidustepid, moderately warm; lukewarm, cool, cooled; faint, languid tepeōto be warm, lukewarm or tepid; to glow with love; to be enamored; to be lukewarm or indifferent in feeling facienduswhich is to be done or made CaeliusLucius Coelius Antipater, a Roman jurist and historian; Marcus Caelius Rufus, a Roman politician and orator tepēscōto grow warm, to become lukewarm; to cool tepefaciōto warm up

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

lukewarm

tepidus, tepens (PROP. and figuratively): lukewarm in anything, lentus et paene frigidus (Cic.) in aliqua re (faciendā): qui quae cupit, ita frigide agit, ut nolle existimetur (caelius, ap. Cic., Fam., 8, 10, 3). To become lukewarm, tepescere: to be lukewarm, tepere (PROP. and figuratively): to make lukewarm, tepefacere (PROP.): lukewarm in religion, negligens dei or deorum.

Quick answer

What is the Latin word for lukewarm?: The usual Latin words for “lukewarm” are tepidus, tepeō, faciendus; also Caelius, tepēscō, tepefaciō. 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.