一切經音義 2.103

2.103

綽（昌約反甚乖梵音正與瑳字相當錯可反即是蹉字上聲是之也）。

[Sanskrit syllable] cha (綽: *tś'iaŋ* + *ʔiɐk* = *tś'iɐk* [chang-yue]; very divergent from the Sanskrit sound. It properly corresponds to the character 瑳, pronounced *ts'âk* + *k'â* = *ts'â* [cuo-ke], which is the rising tone of 蹉).