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or boart, bortz

[bawrt] /bɔrt/
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 forms
borty, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for bort
Historical Examples
  • Mrs. bort received Neaera in a way most unbecoming to a pensioner.

    Mr. Witt's Widow Anthony Hope
  • Let me congratulate you, Mrs. bort, on having done your duty.

    Mr. Witt's Widow Anthony Hope
  • Captns boy loves pigtail, so tie it up when bort an put in his pocket.

    The Funny Side of Physic A. D. Crabtre
  • And bort this banjer, put on your best noo trousers and come right on 'ere?

    Kipps H. G. Wells
  • The governing fact in the situation, the fact that Neaera did not see her way to meet, was that Mrs. bort was an honest woman.

    Mr. Witt's Widow Anthony Hope
  • Neaera could not afford to pity the hapless wights over whom Mrs. bort would rule.

    Mr. Witt's Widow Anthony Hope
  • There was a little scuffle; then the door flew open, and Mrs. bort appeared, with Neaera clinging helplessly about her knees.

    Mr. Witt's Widow Anthony Hope
  • It was also generous of Neaera to send Mrs. bort ten pounds immediately after that lady had treated her so cruelly.

    Mr. Witt's Widow Anthony Hope
  • It was honest of Mrs. bort to refuse to accept money which she thought might be the proceeds of burglary.

    Mr. Witt's Widow Anthony Hope
  • He was born at bort, in the district of Limoges, in 1723, and obtained some provincial reputation in letters.

British Dictionary definitions for bort


an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive
Derived Forms
borty, 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
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Word Origin and History for bort

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

Online Etymology Dictionary, © 2010 Douglas Harper
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