Mammoth Uncensored Word List:
52 words ending with fs, 7 letters long

begulfs behoofs beliefs bepuffs buyoffs chauffs cutoffs decaffs dieoffs engulfs enserfs flyoffs goniffs hairifs hussifs ingulfs khalifs kharifs layoffs logoffs loslyfs massifs payoffs pilaffs popoffs putoffs rebuffs reliefs reroofs returfs ripoffs rosbifs ruboffs runoffs sclaffs scliffs scruffs setoffs shadufs sharifs sherifs shroffs skliffs spliffs straffs tariffs tipoffs uncuffs undeafs unroofs unselfs unturfs