transitive verb

: to fill with detrital material
silt has aggraded the river bed and waterlogged it for a hundred milesErna Fergusson

intransitive verb

: to build up by aggradation
meltwater streams were aggrading beyond the morainesR. J. Lougee

Word History


ad- + -grade (as in degrade entry 1)

First Known Use

1893, in the meaning defined at transitive sense

Time Traveler
The first known use of aggrade was in 1893

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Dictionary Entries Near aggrade

Cite this Entry

“Aggrade.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2024.

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