[v] make soiled, filthy, or dirty; "don't soil your clothes when you play outside!"
bemire, colly, dirty, grime, soil
clean, make clean
bemire, bemud, besmoke, besoil, dirt, dirty, dirty up, dust, foul, grime, mire, muck, muck up, muddy, slime, smirch, smoke, smooch, smudge, soot, tarnish