boart

[bawrt]

noun Mineralogy.

bort.

bort

or boart, bortz

[bawrt]

noun

low-quality diamond, in granular aggregate or small fragments, valuable only in crushed or powdered form, especially for industrial use as an abrasive.

Compare ballas, carbonado².

Origin of bort

1615–25; apparently metathetic variant of *brot (Old English gebrot fragment); akin to Middle English brotel brittle, Old Norse brot fragment

Related formsbort·y, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for boart

Historical Examples of boart

Why don't you co and glup the bresidents that insoalt your lawss, and gick your Boart of Arpidration out-of-toors?
The March Family Trilogy, Complete
William Dean Howells

British Dictionary definitions for boart

boart

noun

a variant spelling of bort

bort

boart bortz (bɔːts)

noun

an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive

Derived Formsborty, adjective

Word Origin for bort

Old English gebrot fragment; related to Old Norse brot piece, Old High German broz bud

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

Word Origin and History for boart

bort

"waste diamonds, small chips from diamond-cutting," of unknown origin, perhaps related to Old French bort "bastard."