submerge

I waded a long way out, til the bottom grew mucky and seaweed tickled my legs, then submerged.

People who were in the path of the deadly wall of water that swept down the mountainside stood little chance as it washed away a bridge, uprooted trees and submerged vehicles.

The flooding washed away several key bridges, submerged vehicles and left the ground floors of homes underwater.

Flooding has submerged cars in one city as torrential rain has caused disruption across Wales.

The water started entering people's houses, and before long, the Gwange area where he lived was submerged.