續一切經音義 4.121

4.121

謇訥（上九[朁-日+車]反說文語吃也從言褰省聲或作𧮈經文從足作蹇足跛也非此用下奴骨反字書亦謇也）。

謇訥 (Stuttering and hesitating speech: the upper character has the fanqie 九[朁-日+車]; the Shuowen says it means stammering in speech; it is formed from 言 with the phonetic 褰 abbreviated; it is also written as 𧮈; the scripture text writes it with the foot classifier as 蹇, which means lame in the feet, and is not the intended meaning here. The lower character has the fanqie 奴骨; character dictionaries say it also means stuttering).