LATIN DICTIONARYLexicon Latīnum
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“devil” in Latin

The English word devil itself goes back to Latin diabolus.

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

devil
diabolus (διάβολος, Essl.): pravus et subdolus spiritus (Lactantius): also cacodaemon (Eccl.). To cast out devils, daemonas adjuratione divini nominis expellere ac fugare (Lactantius). A devil’s brat, Acherontis pabulum (Plaut., Cas., 2, 1, 12). Go to the devil! abi in malam rem! i tu hinc, quo dignus es (comedy). ImPROP., homo (= fellow; e.g., a poor devil, etc.). A devil, homo perditissimus.

Quick answer

What is the Latin word for devil?
The usual Latin words for “devil” are diabolus, Lactantius, homō̆. 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.