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boart

[bawrt]
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noun Mineralogy.
  1. bort.
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bort

or boart, bortz

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

  • 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
  1. a variant spelling of bort
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bort

boart bortz (bɔːts)

noun
  1. an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive
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Derived Formsborty, adjective

Word Origin

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

n.

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

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Online Etymology Dictionary, © 2010 Douglas Harper