资料来源 : Webster's Revised Unabridged Dictionary (1913)

Sordine \Sor"dine\ (? or ?; 277), n. [It. sordina, sordino, from
   sordo deaf, dull-sounding, L. surdus. See {Surd}.] (Mus.)
   See {Damper}, and 5th {Mute}.