the person who is ill has already lost the ability to speak (see Molina; transl. to Engl. here by SW)
Orthographic Variants:
oconcacauh ytlatol
Alonso de Molina:
oconcacauh ytlatol. tener ya perdida la habla el enfermo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 75v. col. 1. Thanks to Joe Campbell for providing the transcription.