buckboard (n.)youdaoicibaDictYouDict[buckboard 词源字典]
1839, "plank on wheels," from board (n.1) + buck "body of a cart or wagon" (1690s), perhaps representing a dialectal survival of Old English buc "belly, body, trunk"(see bucket). As a type of vehicle constructed this way, from 1874.[buckboard etymology, buckboard origin, 英语词源]