lucubrate \LOO-kyoo-breyt\, verb:
1. To work, write, or study laboriously, especially at night.
2. To write learnedly.
He gives me to understand that you chew various cuds of reflection; that you lucubrate ominously day and night.
- -- Edgar Lee Masters, Skeeters Kir: a novel
Nature designed that I should lucubrate for the high-heeled sock; managers have resolved that I shall scribble for the low-heeled buskin.
- -- Charles Dickens, Tragic Case of a Common Writer