ἄφωνος
ἄφωνος
φωνή
voiceless, speechless, dumb, silent, Theogn., Hdt., Dem.: c. gen., ἄφωνος ἀρᾶς unable to utter a curse, Soph.:—adv. -νως, without speaking, Dem.; neut. pl. as adv., Aesch.
ἄφωνα (sc. γράμματα), consonants, opp. to φωνοῦντα or φωνήεντα (vowels), Eur., Plat.