English
lightmonger
From light + monger.
Proto-Indo-European *lewk- ‘to shine’
…
Proto-Germanic *leuhtą
Proto-West Germanic *leuht ‘light’
Old English lēoht
Middle English light ‘light, illumination’
English light
Latin mangō ‘dealer, trader’
Proto-West Germanic *mangārī ‘dealer, merchant, monger’
Old English mangere ‘dealer, merchant, trader’
Middle English mongere ‘dealer, merchant, trader’
English monger
Today it means
noun One who installs lighting.
Language periods are conventional ranges, not dates for this word.
Etymograph / lightmonger