LATIN DICTIONARYLexicon Latīnum
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“illustrate” in Latin

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

illustrate
illustrare (to throw light upon, to explain; e.g., obscura, veritatem; and also figuratively, to glorify, to set off, populi Romani nomen, laudem meam; alicujus eloquentiam; aliquem laudibus): lucem or lumen alicui rei afferre (not affundere): dare alicui rei lumen (set in the proper light; elucidate): explanare aliquid: aperire: explicare: interpretari (explain). (The words are found in this connection and order.) patefacere et illustrare (e.g., obscura, veritatem, Cic.). To illustrate dark passages, etc., occulta et quasi involuta aperire: to illustrate obscure passages, illustrare obscuros locos. Vid: EXPLAIN.

Quick answer

What is the Latin word for illustrate?
The usual Latin words for “illustrate” are illūstrō, lūx, aperiō; also explicō, interpretor, obscūrus. 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.