Dumb
from natural infirmity (Ex. 4:11); not knowing what to say
(Prov. 31:8); unwillingness to speak (Ps. 39:9; Lev. 10:3).
Christ repeatedly restored the dumb (Matt. 9:32, 33; Luke 11:14;
Matt. 12:22) to the use of speech.
Bibliography Information Easton, Matthew George. M.A., D.D., "Biblical Meaning for 'Dumb' Eastons Bible Dictionary". bible-history.com - Eastons; 1897.