tibia (n.)youdaoicibaDictYouDict[tibia 词源字典]
lower leg bone, 1726, from Latin tibia "shinbone," also "pipe, flute" (originally one of bone), in which sense it originally came into English (1540s). Of unknown origin. The Latin plural is tibiæ. Related: Tibial.[tibia etymology, tibia origin, 英语词源]