hexapod (n.)youdaoicibaDictYouDict[hexapod 词源字典]
1660s, from Greek hex "six" (see six) + pod, from Greek pod-, stem of pous "foot," from PIE root *ped- (1) "a foot" (see foot (n.)). As an adjective from 1856.[hexapod etymology, hexapod origin, 英语词源]