elucidate (v.) Look up elucidate at Dictionary.com
1560s, perhaps via Middle French élucider (15c.) or directly from Late Latin elucidatus, past participle of elucidare "make light or clear," from assimilated form of ex "out, away" (see ex-) + lucidus "light, bright, clear," figuratively "perspicuous, lucid, clear," from lucere "to shine," from PIE root *leuk- "to shine, be bright." Related: Elucidated; elucidates; elucidating.