An archaic or dialectal term meaning 'aft' or 'toward the rear' of a ship.
Combination of 'at' + 'after' or 'aft', from Old English 'æft' (behind). The redundancy suggests emphasis or dialectal variation in naval terminology.
Old sailors had lots of specific terms for ship positions, and 'atafter' is one of those colorful maritime words that shows how they really over-explained where things were on a boat!
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