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, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “morosity”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
• “morosity”, in OneLook Dictionary Search.