petulance (n.) Look up petulance at Dictionary.com
c.1600, "insolence, immodesty," from French pétulance (early 16c.), from Latin petulantia "sauciness, impudence," noun of quality from petulantem (see petulant). Meaning "peevishness" is recorded from 1784, from influence of pettish, etc. It displaced earlier petulancy (1550s).