means A basin fixed to a wall with a water supply and drain, used for washing dishes, hands, or food; or, as a verb, to descend below a surface.

from From Old English 'sincan,' to become submerged or fall to the bottom, a Germanic word with cousins across the north — Old Norse 'søkkva,' Dutch 'zinken,' German 'sinken.' The verb came first: things sank long before we built basins. The noun for the kitchen fixture is younger, arriving once 'sink' came to mean a place where water (and waste) drains away and disappears — the spot where things go down.