Across the course; so as to thwart; perversely.
Across, or at right angles, with a vessel's course or keel.
At right angles to the fore-and-aft line of a vessel.
athwartships - At right angles to the fore and aft or centerline of a ship
at right angles to the center line of a ship
at an oblique angle; "the sun shone aslant into his face"
Anything running across the boat from side to side. An aft bench seat across the stern is athwartships.
"Across, from one side to the other." (Uden & Cooper) Also "athwartships" (adverb).
same as Abeam, to the side of the ship at right angles, either left or right.
Perpendicular to a boat's centerline