soots

/S UH1 T S/
noun
  1. 1

    Fine black or dull brown particles of amorphous carbon and tar, produced by the incomplete combustion of coal, oil etc.

Synonyms

verb
  1. 1

    To cover or dress with soot.

    โ€œto soot landโ€

Source: https://en.wiktionary.org/wiki/soot, https://en.wiktionary.org/wiki/soots