aphonia (n.) Look up aphonia at Dictionary.com
in pathology, "want of voice, loss of voice through some physical condition," 1778, from medical Latin aphonia, from Greek aphonia "speechlessness," noun of quality from aphonos "voiceless," from a- "not, without" (see a- (3)) + phone "voice," from PIE root *bhā- (2) "to speak, tell, say" (see fame (n.)) + abstract noun ending (see -ia). Englished form aphony is attested from 1680s.