Learn how to say Soot correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word soot:
a deep black powdery or flaky substance consisting largely of amorphous carbon, produced by the incomplete burning of organic matter.
cover or clog (something) with soot:
you have previously sooted the underside of their plate by holding it over a candle
(as) black as soot
the clouds as black as soot
Old English sōt, of Germanic origin; related to German dialect Sott, from an Indo-European root shared by the verb sit