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