mute

nouns

a deaf person who is unable to speak
a device used to soften the tone of a musical instrument
is a type of (narrower)
a device for amplifying or transmitting sound

verbs

deaden (a sound or noise), especially by wrapping

adjectives

expressed without speech
"a mute appeal"; "a silent curse"; "best grief is tongueless"- Emily Dickinson; "the words stopped at her lips unsounded"; "unspoken grief"; "choking exasperation and wordless shame"- Thomas Wolfe
is derived from
is derived from
unable to speak because of hereditary deafness
is derived from