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roil

[roil] /rɔɪl/
verb (used with object)
1.
to render (water, wine, etc.) turbid by stirring up sediment.
2.
to disturb or disquiet; irritate; vex:
to be roiled by a delay.
verb (used without object)
3.
to move or proceed turbulently.
Origin
1580-1590
1580-90; origin uncertain
Related forms
unroiled, adjective
Can be confused
roil, royal.
Synonyms
2. annoy, fret, ruffle, exasperate, provoke, rile.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un roiled

roil

/rɔɪl/
verb
1.
(transitive) to make (a liquid) cloudy or turbid by stirring up dregs or sediment
2.
(intransitive) (esp of a liquid) to be agitated or disturbed
3.
(intransitive) (dialect) to be noisy or boisterous
4.
(transitive) another word (now rare) for rile (sense 1)
Word Origin
C16: of unknown origin; compare rile
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 un roiled

roil

v.

1580s, of uncertain origin, probably from Middle French rouiller "to rust, make muddy," from Old French roil "mud, muck, rust" (12c.), from Vulgar Latin *robicula, from Latin robigo "rust" (see robust). An earlier borrowing of the French verb is Middle English roil "to roam or rove about" (early 14c.). Related: Roiled; roiling.

Online Etymology Dictionary, © 2010 Douglas Harper
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