bort

(redirected from borty)
Also found in: Encyclopedia.

bort

 (bôrt)
n.
1. Poorly crystallized diamonds used for industrial cutting and abrasion.
2. A carbonado.

[Probably from Dutch boort, tiny waste diamond pieces produced in the gem cutting process, bort , probably from Old French bourt, bastard, from Late Latin burdus, hinny, probably of Celtic origin; akin to Burdō and Burdōnus, ancient Celtic masculine personal names derived from a word for a donkey or mule, animals admired for their robustness.]

bort′y adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

bort

(bɔːt) or

boart

;

bortz

(bɔːts)
n
(Elements & Compounds) an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive
[Old English gebrot fragment; related to Old Norse brot piece, Old High German broz bud]
ˈborty adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

bort

(bɔrt)

n.
low-quality diamond, in granular aggregate or small fragments, valuable only in crushed or powdered form as an abrasive.
[1615–25; appar. metathetic variant of *brot (Old English gebrot fragment)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.