Main Entry:

¹soot

Pronunciation:

\ˈsu̇t, ˈsət, ˈsüt\

Function:

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