peroneus tertiusyoudaoicibaDictYouDict[peroneus tertius 词源字典]
"A small muscle of the leg, sometimes absent, that arises from the fibula, inserts on to the fifth metatarsal bone, and acts to dorsiflex and evert the foot", Mid 18th cent. From post-classical Latin peroneus tertius from peroneus + classical Latin tertius third.[peroneus tertius etymology, peroneus tertius origin, 英语词源]