Here's what rhymes with cosm.
microcosm macrocosm Words that almost rhyme with cosm
awesome often caution cation rosin possum blossom soften opossum precaution libation herniation tryptophan calumniation column autumn carom bottom solemn forum quorum condom bonum quantum boredom decorum mortem balsam dorsum sorghum wampum foursome slalom cockscomb problem drachm nostrum rostrum flotsam stardom thraldom thralldom metronome gastronome sugarplum postpartum falciparum