Pennant

google

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early 17th century: blend of pendant and pennon.

wiktionary

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From Middle English penon, penoun, pynoun, Old French penon, French pennon, from Latin penna(“feather”). See pen(“a feather”), and compare pennon, pinion.

etymonline

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pennant (n.)

1610s, "a rope for hoisting," probably a blend or confusion of pendant in the nautical sense of "suspended rope" and pennon "long, narrow flag." Use for "flag on a warship" is by 1690s; as "flag long in the fly as compared with its hoist," 1815. The meaning "flag symbolizing a sports championship" (especially baseball) is from 1880; as a synonym for "championship" it is attested by 1915.