股 means “crotch, thigh, fork”

また · mata

Kun'yomi (Japanese reading)
また, もも
On'yomi (Chinese reading)
コ

JLPT N1 · Taught in secondary school · 8 strokes

The story

Flesh (月) and 殳, a hand swinging a club: picture legs splitting apart like a forked stick. 股 is where the legs fork: 大股 is a long stride, 内股 is a judo throw, and 二股をかける is to two-time.

Used in 股 (mata, crotch/inner thigh), 二股 (futamata, fork/two-timing), and 股関節 (kokansetsu, hip joint)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.