mōrōsĭtas

1. Peevishness, fretfulness, moroseness (rare but class.): si in morositatem inutilem et odiosam incidamus, Cic. Off. 1, 25, 88: morositas et ea vitia, quae dixi, habent aliquid excusationis, id. Sen. 18, 65.—

2. Niceness, pedantry: affectatione et morositate nimiā obscurabat stilum, Suet. Tib. 70.