Left flesh radical — the indexing component (the
月-shaped form of
肉, distinct from
月 'moon' despite identical print shape). Marks the original sense of
股 as 'thigh, hip' — a body part. The 'share, strand, puff' meanings extend metaphorically: a thigh = one of a pair, hence one division of a whole. Same flesh radical anchors
肝 (liver),
肠 (intestine),
脚 (foot),
膀 (shoulder).