pert. to lucubration; meditative; pert. to studying, composing, or working by candlelight ...1656 obs.
a 'thinking-shop'; a place of midnight study ...1775 obs. jocular usage
from Latin lūcubrātōrius, (pert. to midnight word or a night student),
from lūcubrāre (to work or compose by night or candlelight)
FIRST DOCUMENTED USE
1656 - "...Lucubratory, of or belonging to studying or working by candle-light"
From: Glossographia; or, A Dictionary Interpreting All Such Hard Words, whether Hebrew, Greek or Latin... as are now used in our refined English tongue
- Thomas Blount
"...Lemuel took the tweezer-case, and went out, while the coachman and I remained in his lucubratory, which, in point of exterior, surpassed every thing but the lucubrator."
From: Liberal Opinions, or, The History of Benignus
- Samuel Jackson Pratt, 1783