一切經音義 47.274

47.274

酷怨（古文嚳焅悎三形今作酷同口木反說文酷急也甚也暴虛也）。

Cruel resentment (kuyuan; ancient characters are 嚳, 焅, and 悎, now written 酷; fanqie: 口 + 木 [k- + -u → ku]; the Shuowen jiezi states: ku means urgent; it also means extreme, violently empty).