Mammoth Uncensored Word List:
123 words ending with em

addeem adeem ahem anadem antemortem anthem apothem apozem begem berseem beseem beteem bliksem bluestem brainstem breem brummagem brunizem chernozem coredeem crem cryptosystem deem diadem diastem diltiazem dirhem disesteem dodgem ecosystem eigensystem em emblem epiblem epithem erathem esteem exanthem exeem filesystem gem geosystem golem haem hakeem hareem harem harlem hem ibidem inseem intersystem item maihem mayhem mem meristem metaxylem microsystem millirem misbeseem misdeem misesteem misseem modem montem multiproblem multisystem nonmodem nonproblem nonsystem overteem periblem phellem phloem photosystem pipestem poem postmeridiem postmortem powersystem problem proem protophloem protoxylem randem redeem rehem requiem restem retem riem sachem satem seem semitandem semsem sierozem spelaeothem speleothem spirem steem stem stratagem subitem subproblem subsystem supersystem system tandem teem them theorem totem tridem tschernosem unbeseem valuesystem watersystem weem wem xylem ylem