Latin word protervus comes from Latin protero, Latin -vus

Detailed word origin of protervus

Dictionary entry	Language	Definition
protero	Latin (lat)	I defeat, overthrow, maltreat, abuse. I drive forth or away. I trample down, tread on sth.
-vus	Latin (lat)
protervus	Latin (lat)	Audacious. Reckless, wanton, shameless, impudent. Violent, vehement.

Words with the same origin as protervus