G0880–ἄφωνος–aphōnos

And the contents of the Writing that he was reading was this: `As a sheep unto slaughter he was led, and as a lamb before his shearer dumb, so he doth not open his mouth;

ἄφωνος, aphōnos “[is] silent,”

ye have known that ye were nations, unto the dumb idols -- as ye were led -- being carried away;

ἄφωνα aphōna “mute”

There are, it may be, so many kinds of voices in the world, and none of them is unmeaning,

ἄφωνον· aphōnon “without meaning;”

and had a rebuke of his own iniquity -- a dumb ass, in man's voice having spoken, did forbid the madness of the prophet.

ἄφωνον aphōnon “mute”