I. ˈsu̇t, ˈsət, ˈsüt noun
Etymology: Middle English, from Old English sōt; akin to Old Irish suide soot, 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 ; especially : the fine powder consisting chiefly of carbon that colors smoke
II. transitive verb
Date: 1602
: to coat or cover with soot