coom

or coomb

[ koom ]
/ kum /
|

noun Chiefly Scot. and North England.

soot; coal dust; smut.
dust, especially sawdust or dust from a gristmill.
grease from bearings, axles, etc.

Origin of coom

First recorded in 1580–90; variant of culm1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for coom

British Dictionary definitions for coom

coom

coomb

/ (kuːm) /

noun

dialect, mainly Scot and Northern English waste material, such as dust from coal, grease from axles, etc

Word Origin for coom

C16 (meaning: soot): probably a variant of culm 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012