Tincture

оттенък

ottenǎk

(colour or tint, especially if produced by a pigment or something which stains — see also tinge)

тинкту́ра

tinktúra

(medicine consisting of one or more substances dissolved in ethanol or some other solvent)

обагрям

obagrjam

(to colour or stain (something) with a dye or pigment)

оцветявам

ocvetjavam

(to colour or stain (something) with a dye or pigment)