— siltation , n. — silty , adj.
/silt/ , n.
1. earthy matter, fine sand, or the like carried by moving or running water and deposited as a sediment.
v.i.
2. to become filled or choked up with silt.
v.t.
3. to fill or choke up with silt.
[ 1400-50; late ME cylte gravel, perh. orig. salty deposit; cf. OE unsylt unsalted, unseasoned, sylting seasoning, syltan to salt, season, Norw sylt salty swamp, G Sülze salt marsh, brine ]