- closer or closest to the rear or (in a vessel) the stern; last
WordReference Random House Unabridged Dictionary of American English © 2020
- Nautical, Naval Termsfarthest aft;
aftmost:The aftermost sail is called a spanker.
- bef. 900; after + -most; replacing Middle English aftermest, itself replacing Old English æftemest, equivalent. to æfteme- (cognate with Gothic aftuma last; æfte (see aft) + -m- superlative suffix) + (-e)st -est1