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