宋高僧傳 3.46

3.46

三、亦麁亦細。如梵本中語涉麁、細者是。或注云：「此音訛僻」，即麁言也。

3. Both coarse and fine: as when Sanskrit texts contain language touching upon both coarse and fine; or where a note says, 'This sound is corrupt and vernacular'—this is coarse speech.