Meaning of SOOT in English

I. noun Etymology: Middle English, from Old English sōt; akin to Old Irish suide ~, Old English sittan to sit Date: before 12th century a black substance formed by combustion or separated from fuel during combustion, rising in fine particles, and adhering to the sides of the chimney or pipe conveying the smoke, II. transitive verb Date: 1602 to coat or cover with ~

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.