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