Word Study
coarsen
CIDE DICTIONARY
coarsen, v. t.
To make coarse or vulgar; as, to coarsen one's character. Graham. [1913 Webster]
THESAURUS
coarsen
adulterate, alloy, boss, brutify, canker, carnalize, cheapen, confound, contaminate, corrupt, debase, debauch, defile, deflower, degenerate, degrade, denature, deprave, desecrate, despoil, devalue, distort, gnarl, grain, granulate, horripilate, infect, knob, misuse, pervert, pimple, poison, pollute, popularize, prostitute, ravage, ravish, rough, rough up, roughen, smooth, stud, taint, tooth, twist, ulcerate, violate, vitiate, vulgarize, warpFor further exploring for "coarsen" in Webster Dictionary Online