Simple past tense and past participle of silt.(verb)
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Use "silted" in a sentence
"A coin silted into the gravel under the bank there, where the river made a shallow cove, and clawed up in the fist of a scrambling urchin who happened to sprawl on his face there in evading pursuit."
"The lagoon on which it was built eventually silted up and Aigues-Mortes was eclipsed as a port city by Marseilles."
"I am simply saying that it would be fitting and right for those responsible for the damages caused — I do not care whether those damages be in terms of silted streams, scarred landscapes, or in lost livestock — to take full responsibility for them."