English
lightvessel
From light (noun) + vessel (noun).
Proto-Indo-European *lewk- ‘to shine’
…
Proto-Germanic *leuhtą
Proto-West Germanic *leuht ‘light’
Old English lēoht
Middle English light ‘light, illumination’
English light
Proto-Italic *wāss ‘container, vessel’
Late Latin vās ‘vase, vessel’
Late Latin vāscellum ‘a small vase or urn’
Old French vaissel
Middle English vessel ‘small container’
English vessel
Today it means
noun A vessel with a light as a navigation aid; especially, a lightship.
Language periods are conventional ranges, not dates for this word.
Etymograph / lightvessel