I. ˈgrau̇t, usu -au̇d.+V noun
( -s )
Etymology: Middle English, from Old English grūt; akin to Middle Dutch grūte malt, dregs, Middle High German grūz grain, sand, Old English grytt grit — more at grit (coarse meal)
1. archaic
a. : coarse meal : hulled grain
b. grouts plural : oats
2. now dialect England
a. : a malt infusion before or during fermentation
b. : small beer
3. archaic : porridge of grout or groats
4. : lees , dregs, grounds
5.
a.
(1) : thin mortar fluid enough to be poured and used for filling in spaces (as the joints of masonry, brickwork, brick or stone block pavements, forced under pressure as into prepacked graded stone to form concrete, into fissures in foundation rock, into railroad ballast or the subgrade, or into the space between tunnel lining and the surrounding earth)
(2) : material used for a similar purpose ; specifically : a mixture of portland cement and water applied under pressure during oil-well drilling to prevent contamination of the oil by sealing off undesirable fluids and also to provide a protective wall around the metal casing
b.
(1) : a coarse plaster or cement used for coating the wall of a building and usually studded with small stones after application
(2) : a fine plaster or cement used for finishing ceilings
c. : concrete
d. : mortar
II. transitive verb
( -ed/-ing/-s )
: to fill up or finish with or as if with grout
the material used in sealing or grouting them — U.S. War Dept. Technical Manual
III. intransitive verb
( -ed/-ing/-s )
Etymology: perhaps alteration of obsolete English grewt, grut dry earth, soil, from Middle English grut mud, earth; akin to Old English grūt grout, grēot grit, sand, earth — more at grit (sand)
Britain : root , grub
grouting in the grass — Virginia Woolf