Self-component pictograph — the bent-leg silhouette of a small child, oracle-bone form of a kneeling figure with an open fontanelle at the top. As Kangxi radical #10 it indexes characters built on a wide-legged base:
元,
兄,
先,
光,
兔. In simplified Chinese it also absorbs traditional
兒, giving it a second life as the toneless erhua suffix.
