Here's what rhymes with potamus.
Words that almost rhyme with potamus
exogenous eponymous motionless boastfulness wholesomeness loathsomeness lonesomeness soullessness dolefulness woefulness openness hopelessness socialists homelessness copiousness emotionless postmistress ferociousness soulfulness toastmistress atrociousness proteolysis chauvinists precociousness ufologists globalists unwholesomeness