Mammoth Uncensored Word List:
78 words ending with th, 5 letters long

airth azoth baith beath berth birth booth brith broth cheth cloth couth crith crwth death depth derth doeth earth faith fifth filth firth forth fouth fowth frith froth furth garth girth grith haith heath illth kheth laith loath meath meith mirth month mouth musth neath ninth north quoth rewth routh rowth saith scath sieth sixth sloth smith snath sooth south sowth swath swith synth teeth tenth tilth tooth troth truth tuath uneth width worth wrath wroth yirth youth