morosity

From French morosité, from Latin morositas (“peevishness”), from morosus (“particular, scrupulous, fastidious, self-willed, wayward, capricious, fretful, peevish”), from mos (“way, custom, habit, self-will”).

morosity (usually uncountable, plural morosities)

1. The quality or state of being morose.

• moroseness

• morosity in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• morosity in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• morosity at OneLook Dictionary Search