malleolus (n.)youdaoicibaDictYouDict[malleolus 词源字典]
bone knob at the ankle, 1690s, from Latin malleolus, diminutive of malleus "a hammer" (see mallet). Anatomical use is said to date to Andreas Vesalius (1514-1564).[malleolus etymology, malleolus origin, 英语词源]