speedy (adj.)youdaoicibaDictYouDict[speedy 词源字典]
Old English spedig "prosperous, wealthy," from speed (n.) + -y (2). Meaning "moving swiftly" is from late 14c. Related: Speedily; speediness. Speedy Gonzales, Warner Brothers studios talking cartoon mouse, debuted in a 1953 short directed by Bob McKimson.[speedy etymology, speedy origin, 英语词源]