一切經音義 88.170

88.170

窊隆（上乙瓜反說文云窊污邪下也從穴瓜聲）。

窊隆 [Depressed and elevated] (The upper character is pronounced with the fanqie 乙瓜. The Shuowen says: '窊 means sunken, curved, and low; it takes 穴 [cave] as semantic classifier and 瓜 as phonetic').