English
lucubrator
From lucubrate + -or.
Formed from lucubrate + -or
Proto-Indo-European *lewk- ‘bright’
Proto-Indo-European *lewk-o-dʰro-
Latin lūcubrō ‘to work by candlelight’
Latin lūcubrātus ‘made, produced or composed by night or…’
English lucubrate
Today it means
noun One who lucubrates.
Language periods are conventional ranges, not dates for this word.
Etymograph / lucubrator