pennant (n.)youdaoicibaDictYouDict[pennant 词源字典]
1610s, "rope for hoisting," probably a blend of pendant in the nautical sense of "suspended rope" and pennon. Use for "flag on a warship" first recorded 1690s; "flag symbolizing a sports championship" (especially baseball) is from 1880; as a synonym for "championship" it was first used 1915.[pennant etymology, pennant origin, 英语词源]