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