Here's what rhymes with effectuum.
boom tomb doom whom room bloom gloom womb broom groom loom plume zoom rheum entomb assume costume fume suum flume abloom foredoom resume consume perfume presume residuum subsume exhume elbowroom legroom boxroom strongroom Words that almost rhyme with effectuum
tune boon doin dune soon moon noon spoon foon coon prune loon rune attune croon festoon goon shoon balloon cartoon hewn shewn strewn cocoon toluene aucune baboon buffoon harpoon maroon swoon typhoon bassoon tycoon jejune spittoon immune lagoon platoon saloon forenoon opportune pontoon raccoon dragoon impugn lampoon doubloon patroon picayune racoon macaroon afternoon honeymoon monsoon inopportune importune poltroon bestrewn dessertspoon protozoon tablespoon spermatozoon trinitrotoluene