scooter (n.)youdaoicibaDictYouDict[scooter 词源字典]
1825, "one who goes quickly," agent noun from scoot (v.). Also in 19c. a type of plow and a syringe. As a child's toy, from 1919 (but the reference indicates earlier use), as short for motor scooter from 1917. [scooter etymology, scooter origin, 英语词源]