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