μογιλάλος G3424
mogilálos · mog-il-al'-os · Adjective
from μόγις and λαλέω; hardly talking, i.e. dumb (tongue-tied):--having an impediment in his speech.
1 Occurrence in the King James Bible
Mark 7:32And they bring unto him one that was deaf, and had an impediment in his speech; and they beseech him to put his hand upon him.