Here's what rhymes with polygonum.
bonum metronome gastronome Words that almost rhyme with polygonum
konnen common lawman uncommon cardamon postwomen column condom carom bottom solemn quantum forum decorum quorum possum blossom boredom mortem balsam dorsum sorghum wampum opossum foursome slalom cockscomb problem drachm falciparum nostrum rostrum flotsam stardom thraldom thralldom microcosm macrocosm sugarplum postpartum