γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules
adj.
P. and V. ἄφωνος, V. ἄφθογγος, ἀπόφθεγκτος, ἀφώνητος, ἄλαλος, ἀνεπής, ἄναυδος.