AGGRADE
aggrade
(verb) build up to a level by depositing sediment
Source: WordNet® 3.1
Etymology
Verb
aggrade (third-person singular simple present aggrades, present participle aggrading, simple past and past participle aggraded)
(transitive, geology) to raise the level of a river bed by the deposition of sediment
Anagrams
• garaged
Source: Wiktionary
Ag*grade", v. t. [imp. & p. p. Aggraded; p. pr. & vb. n. Aggrading.]
(Phys. Geog.)
Definition: To bring, or tend to bring, to a uniform grade, or slope, by
addition of material; as, streams aggrade their beds by depositing
sediment.
Source: Webster’s Unabridged Dictionary 1913 Edition