Lucubration
Lucubration , noun
[l. lucubratio;compare French lucubration.]
1.
The act of lucubrating, or studying by candlelight; nocturnal study; meditation.
After long lucubration I have hit upon such an expedient.
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.