Liddell–Scott–Jones: τρᾱχύ-στομος

τρᾱχύ-στομος,ον,

A. of rough speechorpronunciation,

Str. 14.2.28 , where he couples it withπαχύστομος,and in the same paragraph he writesπαχυστομέω(τραχυστομέωcod. E, and so it is cited in Eust. 367.29 ),παχυστομία.