Origin: See Whim.
1. A whim; a freak; a capricious notion, a fanciful or odd conceit. The whimsies of poets and painters. Men’s folly, whimsies, and inconstancy. (swift) Mistaking the whimseys of a feverish brain for the calm revelation of truth. (Bancroft)
2. (Science: chemical) A whim.