stain (suomeksi)

tahra (s: discoloured spot or area / blemish on one's character or reputation)
tahriintua (v)
tahrata (v: to taint or tarnish someone's character or reputation)
läiskä (s: discoloured spot or area)
jälki (s: discoloured spot or area)
väriaine (s: substance used to soak into a surface and colour it / reagent or dye used to stain microscope specimens so as to make some structures visible)
loata (v: to taint or tarnish someone's character or reputation)
värjätä (v: to treat a microscope specimen with a dye)