whimsiness

English

Etymology

From whimsy +‎ -ness.

Noun

whimsiness (uncountable)

whimsicality
- 1851 November 14, Herman Melville, Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, →OCLC:
  With a wild whimsiness, he now used his coffin for a sea-chest; and emptying into it his canvas bag of clothes, set them in order there.