1. (verb) become chocked with silt

• silt up

1. (noun) mud or clay or small rocks deposited by a river or lake

• dirt
• soil

2. (verb) become chocked with silt

• back up
• choke
• choke off
• clog
• clog up
• congest
• foul

1. (noun) mud or clay or small rocks deposited by a river or lake

• silt up
• silty