lucubration

noun

1. (countable, uncountable)Intense and prolonged study or meditation; especially, late at night.

   “The virtue of Marcus Aurelius Antoninus was of a severer and more laborious kind. It was the well-earned harvest of many a learned conference, of many a patient lecture, and many a midnight lucubration.”

2. (countable, uncountable)The product of such study; often, writings.

   “With his own ghostly voice, he had exhorted me, on the sacred consideration of my filial duty and reverence towards him,—who might reasonably regard himself as my official ancestor,—to bring his mouldy and moth-eaten lucubrations before the public.”

   “There is General Blair. True, his lucubrations on negro supremacy are ludicrous enough, but it will not do to speak lightly of his ability. There is power in his organization.”

   “'You have been good enough to allude to me in one of your recent lucubrations,' he said, shaking the paper at me.”