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grout

[grout] /graʊt/
noun
1.
a thin, coarse mortar poured into various narrow cavities, as masonry joints or rock fissures, to fill them and consolidate the adjoining objects into a solid mass.
2.
a coat of plaster for finishing a ceiling or interior wall.
3.
Usually, grouts. lees; grounds.
4.
Archaic.
  1. coarse meal or porridge.
  2. grouts, groats.
verb (used with object)
5.
to fill or consolidate with grout.
6.
to use as grout.
Origin
1150
before 1150; Middle English; Old English grūt; see grits, groats, grit
Related forms
grouter, noun
ungrouted, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for grouts

grouts

/ɡraʊts/
plural noun
1.
(mainly Brit) sediment or grounds, as from making coffee
2.
a variant of groats

grout

/ɡraʊt/
noun
1.
a thin mortar for filling joints between tiles, masonry, etc
2.
a fine plaster used as a finishing coat
3.
coarse meal or porridge
verb
4.
(transitive) to fill (joints) or finish (walls, etc) with grout
Derived Forms
grouter, noun
Word Origin
Old English grūt; related to Old Frisian grēt sand, Middle High German grūz, Middle Dutch grūte coarse meal; see grit, groats
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 grouts

grout

n.

1580s, "thin, fluid mortar," originally "coarse porridge," perhaps from Old English gruta (plural) "coarse meal," related to Old English grytta (see grits). As a verb from 1838. Related: grouted; grouting.

Online Etymology Dictionary, © 2010 Douglas Harper
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