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