續一切經音義 3.59

3.59

慙愧（上徂含反下軌位反說文愧亦慙也禮記云君子不以所能者而病於人不以所不能者而愧於人廣雅曰慚恥也爾雅云愧慙也二字互相訓也說文作愧亦作謉聭二形皆古字也）。

Ashamed and contrite (慙愧: the first character has the fanqie 徂含 [cu + han / cán]; the second character has the fanqie 軌位 [gui + wei / kuì]. The Shuowen says: "'愧' also means ashamed (慙)." The Liji says: "The gentleman does not distress others with what he himself can do, nor does he feel ashamed before others for what he cannot do." The Guangya says: "'慚' means shame." The Erya says: "'愧' means '慙'." The two characters define each other. The Shuowen writes it as 愧, and also as 謉 and 聭; both forms are ancient characters.)