一切經音義 6.46

6.46

互無（上胡固反說文互交也經作㸦訛變俗也下音無古文奇字中無字也古譯經多用此无字也）。

互無 ("mutually nonexistent": the upper character has the fanqie 胡固 [hù]. Shuowen says: "Hù means crossing." The scripture text writes it as 㸦, which is an erroneous vulgar variant. The lower character is pronounced 無; among the ancient and strange characters, it is the character wú; old translations of scriptures frequently used this character 无.)