"A muscle of the lateral side of the leg that arises from the fibula, inserts on to the fifth metatarsal bone, and acts to evert the foot", Early 18th cent.; earliest use found in James Drake (d. 1707), political and medical writer. From scientific Latin peroneus brevis from post-classical Latin peroneus + classical Latin brevis short.[peroneus brevis etymology, peroneus brevis origin, 英语词源]