• to bog, to bog down, to get bogged, to get bogged down
• depression, settling, sinkage, sinking, swag, swale, yield
• to founder, to go down, to merge, to settle down, to sink, sank, sunk, to submerge
• to come down, to dip, to give way
• to lapse into, to lapse into sg
• she sank bunk in the middle of the channel