English

impetuousness

From impetuous + -ness.

A compound of impetuous + -ness

Latin impetus ‘attack, violence’

Late Latin impetuōsus ‘violent’

Old French impetueux ‘forceful’

Middle English impetuous

Today it means

noun The state or quality of being impetuous; making arbitrary decisions.

Language periods are conventional ranges, not dates for this word.

Etymograph / impetuousness