When you write and study hard at night, this is an example of a situation where you lucubrate.
intransitive verb-·brat·ed, -·brat·ing
- to work, study, or write laboriously, esp. late at night
- to write in a scholarly manner
Origin of lucubratefrom Classical Latin lucubratus, past participle of lucubrare, to work by candlelight from lux (gen. lucis), light
intransitive verblu·cu·brat·ed, lu·cu·brat·ing, lu·cu·brates Archaic
Origin of lucubrateLatin lūcubrāre lūcubrāt- to work at night by lamplight ; see leuk- in Indo-European roots.
(third-person singular simple present lucubrates, present participle lucubrating, simple past and past participle lucubrated)
From Latin lÅ«cubrÄtus, perfect passive participle of lÅ«cubrÅ (“work by candlelight"), from lÅ«x (“light").