(v. t.) To besmear or soil with anything oily or dirty\.

apply paint attaint bedizen begild besmear besmirch besmoke besmutch besoil bestain black blacken blur brand brush on paint butter calcimine coat color complexion cover dab darken daub deep-dye dip dirty discolor distemper double-dye dye emblazon enamel engild face fast-dye fresco gild glaze gloss grain hue illuminate imbue ingrain japan lacquer lay on lay on color mark paint parget pigment plaster prime scorch sear shade shadow shellac singe slap on slather slop on paint slubber slur smarm smear smear on smirch smoke smouch smudge smut smutch soil spot spread on spread with stain stigmatize stipple sully taint tar tarnish tinct tincture tinge tint tone undercoat varnish wash whitewash