cartwheel (n.)youdaoicibaDictYouDict[cartwheel 词源字典]
late 14c., "wheel of a cart," from cart (n.) + wheel (n.). Meaning "lateral somersault" is recorded from 1861; as a verb from 1907. Related: Cartwheeled; cartwheeling. [cartwheel etymology, cartwheel origin, 英语词源]