一切經音義 11.287

11.287

膝腨（[(└@口)/目]逸反正從卪音節作膝今通云膝從肉桼音七聲也下船耎反而兖反古今正字作[跳-兆+專]說文足䠊膓也從肉耑音端省聲）。

膝腨 (xī [fanqie: [(└@口)/目]逸反]: the correct form has 卪 as radical, pronounced jié, meaning joint, written as 膝; now commonly 膝 is written with 肉 as radical and 桼 [sound qī] as phonetic. The second character is chuán-ruǎn [fanqie: 船耎反] or ér-yǎn [fanqie: 而兖反]; Gujin zhengzi writes it as 𨁝; Shuowen jiezi says it is the calf of the leg, having 肉 as radical and 耑 [sound duān] as abbreviated phonetic).