Definition of abaft in English:
 abaft
adverb əˈbɑːftəˈbæft
Nautical In or behind the stern of a ship.
 a line of clouds was spotted abaft by the starboard lookout
 Example sentencesExamples
-  Terry looked abaft himself and saw that the fearsome man had indeed gone.
 -  The blizzard made it impossible to see anything abaft of the bridge.
 -  It's when the breeze comes from the side, and slightly abaft of abeam, that a vessel can achieve its fastest point of sail.
 -  The swell was either just abaft or on the beam and at night you couldn't see it.
 -  With six months' stores, she draws twenty-two foot nine, abaft.
 -  A built-in motor bracket cuts cockpit noise and adds security in big seas from abaft.
 
preposition əˈbɑːftəˈbæft
Nautical Nearer the stern than; behind.
 the yacht has a shower just abaft the galley
 Example sentencesExamples
-  When a mainsail was set up in the correct place abaft the genoa, the strain on the headsail sheet was observed to rise considerably.
 -  Dropping down abaft the bridge, the first thing to come into view was the funnel.
 -  With this security he had established as his right a caboose abaft the funnel in the midships Bofors gunshield where the gun had been removed.
 -  The first of two hatches to the control room section is immediately abaft the sail, being the main access into the boat.
 -  The carpenter had turned the capstan just abaft the mainmast into a perfectly acceptable desk.
 
Origin
  
Middle English (in the sense 'backwards'): from a-2 (expressing motion) + archaic baft 'in the rear'.
Rhymes
  
aft, craft, daft, draft, draught, engraft, graft, haft, kraft, raft, understaffed, unstaffed, waft