grit one's teeth

grit

[grit]
noun
1.
abrasive particles or granules, as of sand or other small, coarse impurities found in the air, food, water, etc.
2.
firmness of character; indomitable spirit; pluck: She has a reputation for grit and common sense.
3.
a coarse-grained siliceous rock, usually with sharp, angular grains.
4.
British, gravel.
5.
sand or other fine grainy particles eaten by fowl to aid in digestion.
verb (used with object), gritted, gritting.
6.
to cause to grind or grate together.
verb (used without object), gritted, gritting.
7.
to make a scratchy or slightly grating sound, as of sand being walked on; grate.
Idioms
8.
grit one's teeth, to show tenseness, anger, or determination by or as if by clamping or grinding the teeth together.

Origin:
before 1000; Middle English gret, griet, grit, Old English grēot; cognate with German Griess, Old Norse grjōt pebble, boulder; see grits

gritless, adjective
gritter, noun


2. resolution, fortitude, courage.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
grit (ɡrɪt)
 
n
1.  small hard particles of sand, earth, stone, etc
2.  Also called: gritstone any coarse sandstone that can be used as a grindstone or millstone
3.  the texture or grain of stone
4.  indomitable courage, toughness, or resolution
5.  engineering an arbitrary measure of the size of abrasive particles used in a grinding wheel or other abrasive process
 
vb , grits, gritting, gritted
6.  to clench or grind together (two objects, esp the teeth)
7.  to cover (a surface, such as icy roads) with grit
 
[Old English grēot; related to Old Norse grjōt pebble, Old High German grioz; see great, groats, gruel]
 
'gritless
 
adj

Grit (ɡrɪt)
 
n, —adj
an informal word for Liberal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

grit
O.E. greot "sand, dust, earth, gravel," from P.Gmc. *greutan "tiny particles of crushed rock" (cf. O.S. griot, O.Fris. gret, O.N. grjot "rock, stone," Ger. Grieß "grit, sand"), from PIE ghreu- "rub, pound, crush" (cf. Lith. grudas "corn, kernel," O.C.S. gruda "clod"). Sense of "pluck, spirit" first
recorded Amer.Eng. 1808. Gritty in sense of "unpleasant" (of literature, etc.) is 1882, in reference to the sensation of eating gritty bread.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Idioms & Phrases

grit one's teeth

Summon up one's strength to face unpleasantness or overcome a difficulty. For example, Gritting his teeth, he dove into the icy water. This expression uses grit in the sense of both clamping one's teeth together and grinding them with effort. [Late 1700s]

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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