lucubration

lucubration is a   Noun

Definition:

[1] The act of lucubrating, or studying by candlelight; nocturnal study; meditation. After long lucubration I have hit upon such an expedient. Goldsmith.

[2] That which is composed by night; that which is produced by meditation in retirement; hence (loosely) any literary composition. Thy lucubrations have been perused by several of our friends. Tatler.

Synonyms: