續一切經音義 9.155

9.155

獰惡（上乃庚反切韻云獰惡也或作獰考聲云人不善情也下烏各反正作惡又烏故今不取）。

獰惡 (The first character has the fanqie 乃庚 [nǐng]. The Qieyun states: 'Fierce and wicked.' It is also written as 獰. The Kaosheng states: 'The unvirtuous disposition of a person.' The second character has the fanqie 烏各 [è], which is properly written as 惡. It also has the sound 烏故 [wù], which is not adopted here.).