aggrade

verb

ag·​grade
ə-ˈgrād,
a-
-ed/-ing/-s

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

Etymology

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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near aggrade

Cite this Entry

“Aggrade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aggrade. Accessed 28 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!