Aft is defined as the rear end of a ship or aircraft.(adverb)
An example of aft is the opposite end of ship from the front.
See aft in Webster's New World College Dictionary
Origin: ME afte < OE æftan (akin to Goth aftana, from behind < afta, behind, farthest back) < IE base *af-, off, away
See aft in American Heritage Dictionary 4
adverb & adj.
Origin: Middle English afte, back
Origin: , from Old English ǽftan, behind; see apo- in Indo-European roots.
Learn more about aft