i Register
In some senses, lucubrate is marked as rare. Watch for register when choosing this word.
verb
To work diligently by artificial light; to study at night.
Instead, as Oklahoma’s tenure committee lucubrated over Hill’s future, […]
To work or write like a scholar.
1846, Nathaniel Chipman, in Daniel Chipman, The Life of Hon. Nathaniel Chipman, LL.D., p. 261, […] I shall not hesitate to repeat some of my former thoughts, when lucubrating upon the same subject.