Aggrade
/ˈæɡreɪd/noun
To raise the level of a river bed or land surface by the deposition of sediment.
Did you know?Aggrade comes from the same Latin root as **grade**, tied to the idea of a step or degree, so the word carries the ancient sense of building upward layer by layer.
Etymological Timeline
Latin
Latin
gradus
“a step, pace, or degree”
Medieval Latin
Latin
aggradare
“to step up, increase, or rise”
19th Century
English
aggrade
“to raise by accumulation, especially by sediment”
Modern English
English
aggrade
“to build up or increase a surface level by deposition”