What is another word for "muffle"?

Roget's Thesaurus (1911) lists these synonyms for "muffle": absence, air, alembic, all, and, andiron, any, aphonia, aphonous, aphony, area, athanor, awful, backlog, bakehouse, bated, bath, better, boiler, brasier, breath, breathless, broken, burner, caboose, caldron, camboose, central, chamber, childish, coal, combustion, conservatory, convective, could, cracked, cracker, crucible, cut, dead.