Here's what rhymes with supponendum.
referendum Words that almost rhyme with supponendum
momentum tendon dentin intention abstention hempen subvention indention distention inattention supervention intervention circumvention contravention nonintervention seldom venom denim phenom welcome harem addendum plenum vellum bedlam velum jetsam webcam envenom rectum septum unwelcome spectrum plectrum bubblegum cerebellum antebellum antiserum flagellum interregnum