From Fire Emblem Wiki, your source on Fire Emblem information. By fans, for fans.
The Wing Clipper (Japanese: 燕返し Swallow Reversal) is a sword first appearing in Fire Emblem: Genealogy of the Holy War. It is a weapon designed to fight soldiers on flying mounts, such as Pegasus Knights and Wyvern Riders, and is very effective against units of this type.
In the main Fire Emblem series
In other Fire Emblem series titles
Genealogy of the Holy War
Etymology and other languages
|Names, etymology and in other regions
||Definition, etymology and notes
||Refers to wing clipping, the process of trimming a bird's primary flight feathers so it can no longer fly.
|• Wing Clipper
|• Used in older fan translations.|
• Used in various fan translations of the game, to match up with other bonus damage weapons such as the Armorslayer and Wyrmslayer.
||Swallow Reversal. Refers to the Japanese swordsman Sasaki Kojirō's signature technique, the Turning Swallow Cut. This technique was apparently so quick and precise that it could strike down birds mid-flight. Rendered in hiragana as つばめがえし in Genealogy of the Holy War.
||Penknife; lit. "cut feathers".