- A thin triangular flag or streamer, especially as hung from the end of a lance or spear.
Etymology: Anglo-Norman penun, penoun, from Old French penne "feather" + -on diminutive suffix.
- 1909, Charles Henry Ashdown, European Arms & Armor, page 65:
- :Nearly all the Norman spears were embellished with pennons of from two to five points.
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