Lucubration /(?)/

Lu·cu·bra·tion

Lucubration

n.
  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.