Make a smudge on; soil by smudging.

synonyms: blur, smear, smudge.

Roget 431: be black etc. adj.; render black etc. adj.. blacken, infuscate^†, denigrate; blot, blotch; smutch^†; smirch; darken etc. 421.    black, sable, swarthy, somber, dark, inky, ebony, ebon, atramentous^†, jetty; coal-black, jet-black; fuliginous^†, pitchy, sooty, swart, dusky, dingy, murky, Ethiopic; low-toned, low in tone; of the deepest dye.    black as jet etc. n., black as my hat, black as a shoe, black as a tinker's pot, black as November, black as thunder, black as midnight; nocturnal etc. (dark) 421; nigrescent^†; gray etc. 432; obscure etc. 421.    ... show more

Roget 653: be unclean, become unclean etc. adj.; rot, putrefy, ferment, fester, rankle, reek; stink etc. 401; mold, molder; go bad etc. adj.. render unclean etc. adj.; dirt, dirty; daub, blot, blur, smudge, smutch^†, soil, smoke, tarnish, slaver, spot, smear; smirch; begrease^†; dabble, drabble^†, draggle, daggle^†; spatter, slubber; besmear &c., bemire, beslime^†, begrime, befoul; splash, stain, distain^†, maculate, sully, pollute, defile, debase, contaminate, taint, leaven; corrupt etc. (injure) 659; cover with dust etc. n.; drabble in the mud^†; roil.    wallow in the mire; slobber, slabber^†.    ... show more