alluviate

verb
al·lu·vi·ate | \-vēˌāt, usually -ād + V\
-ed/-ing/-s

Definition of alluviate 

transitive verb

: to cover with alluvium an alluviated valley

intransitive verb

: to deposit alluvium

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First Known Use of alluviate

1810, in the meaning defined at transitive sense

History and Etymology for alluviate

alluvium + -ate

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The first known use of alluviate was in 1810

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