Etymology: Middle English, from Middle French gré, from Late Latin gratum, from neuter of Latin gratus pleasing, thankful — more at grace
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II. noun
(-s)
Etymology: Middle English, from Middle French gré step, degree, from Latin gradus — more at grade
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III. verb
(-ed/-ing/-s)
Etymology: Middle English green, short for agreen — more at agree
now dialect : agree
Useful english dictionary. 2012.