aphonia (n.) Look up aphonia at Dictionary.com
"want of voice, loss of voice, having no sound," 1719, from Modern Latin aphonia, from Greek aphonia "speechlessness," noun of quality from aphonos "voiceless," from a- "not, without" (see a- (3)) + phone "voice," from PIE root *bha- (2) "to speak, tell, say" (see fame (n.)) + abstract noun ending -ia. Less-common Englished form aphony is attested from 1827.