Silt

v. fill or obstruct with silt; become filled with or obstructed by silt

n. fine particles of sand and other earthy matter which are carried and deposited by water

Silt is soil or rock derived granular material of a specific grain size. Silt may occur as a soil or alternatively as suspended sediment in a water column of any surface water body. It may also exist as deposition soil at the bottom of a water body.
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Noun
1. mud or clay or small rocks deposited by a river or lake
(hypernym) soil, dirt
(derivation) silt up
Verb
1. become chocked with silt; "The river silted up"
(synonym) silt up
(hypernym) clog, choke off, clog up, back up, congest, choke, foul

n. silt, fine particles of sand and other earthy matter which are carried and deposited by water

n. plate