Silt
WordNet
noun
(1) Mud or clay or small rocks deposited by a river or lake
verb
(2) Become chocked with silt
"The river silted up"
WiktionaryText
Etymology
From , cognate with Norwegian and Danish and Old English
Noun
- Mud or fine earth deposited from running or standing water.
- Material with similar physical characteristics, whatever its origins or transport.
Verb
- To clog or fill with silt.
- To become clogged with silt.