English
illuminator
From illuminate + -or.
Formed from illuminate + -or
Proto-Indo-European *lewk- ‘bright’
…
Latin lūminō ‘light up’
Latin illūminō ‘lighten, light up, show off’
Latin illūminātus ‘illuminated, brightened, having been illuminated’
Middle English illuminaten
English illuminate
Today it means
noun Agent noun of illuminate: One who illuminates; an explainer.
Language periods are conventional ranges, not dates for this word.
Etymograph / illuminator