also: えだにょう
kanji 'branch' radical as enclosure
Refers to the kanji radical 支 when it forms a left-and-bottom enclosure, as in 翅 or 起. A technical term used in kanji studies.
The radical of 翅 is しにょう.
From 支 (し, 'branch') + 繞 (にょう, 'surrounding radical'). The reading えだにょう uses the kun'yomi of 支.