aggrade

[uh-greyd]

ag·grade

[uh-greyd]
verb (used with object), ag·grad·ed, ag·grad·ing. Physical Geography.
to raise the grade or level of (a river valley, a stream bed, etc.) by depositing detritus, sediment, or the like.
Compare degrade.


Origin:
1895–1900; ag- + grade

ag·gra·da·tion [ag-ruh-dey-shuhn] , noun
ag·gra·da·tion·al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Aggrade is one of our favorite verbs.
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chat, to converse
to run away hurriedly; flee.
Collins
World English Dictionary
aggrade (əˈɡreɪd)
 
vb
(tr) Compare degrade to build up the level of (any land surface) by the deposition of sediment
 
aggradation
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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