失脚
しっきゃく · shikkyaku · JLPT N1 · noun
standing
脚 — meat radical 月(肉) + 却 (phonetic)
脚 is a semantic-phonetic compound. The left side 月 is the 'flesh/body' radical (from 肉), marking it as a body part. The right side 却 supplies the sound. Originally it referred to the lower leg or shin, and later broadened to mean 'foot' or 'leg' generally.