English

lightkeeper

From light (noun) + keeper (noun).

A compound of light + keeper

Proto-Indo-European *lewk- ‘to shine’

…

Proto-Germanic *leuhtą

Proto-West Germanic *leuht ‘light’

Old English lēoht

Middle English light ‘light, illumination’

English light

Middle English kepere

Today it means

noun The person who has charge of the light in a lighthouse or lightship.

Language periods are conventional ranges, not dates for this word.

Etymograph / lightkeeper