(nautical) On the aft side; in the stern. [First attested in the early 17th century.]
With the wind abaft.
The mate sleeps abaft.
Origin of abaft
Middle English on baftonatonbaftto the rear (from Old English beæftanbehind) (beby, atambhi in Indo-European roots) (æftanbehindapo- in Indo-European roots)
American Heritage Dictionary of the English Language, 5th Edition
From a- (“on”) + Middle English baft, baften, biaften, Old English beæftan; be (“by”) (modern English by) + æftan (“behind”) (modern English after). See also aft.
Abaft Sentence Examples
Bertram Elliot, waiting to lead the Royals just abaft the bridge, was struck down by a shell which did fearful execution forward.
Thus the part of B caused by the permanent magnetism of hard iron must be corrected by permanent magnets horizontally placed in a fore and aft direction; the other part caused by vertical soft iron by means of bars of vertical soft iron, called Flinders bars, before or abaft the compass.
In late 1923, S-1 was modified by the addition of a steel seaplane hangar abaft the conning tower.
In a chamber abaft the mast the viking had been laid, with his weapons, and together with him were buried twelve horses, six dogs and a peacock.