2 Syllables: SU
bogus, boldness, bonus, closest, coldest, coldness, copious, Corinth, dosage, doses, focus, focussed, forums, grossness, Grotius, homeless, hopeless, hostess, Jonas, Josef, Joseph, Joseph's, knowest, locus, locust, Lois, lotus, lowest, lowness, modus, Moses, motions, Noah's, notice, notions, oceans, odious, oldest, omens, onus, opens, opus, orange, Owens, poems, porridge, poses, postage, Proteus, quotas, Romans, slogans, slowest, slowness, soulless, storage, tokens, voltage
3 Syllables: SUU
3 Syllables: USU
atrocious, commodious, commotions, devotions, diplomas, erroneous, explosions, ferocious, harmonious, melodious, necrosis, neurosis, precocious, prognosis, promotions, psychosis, remoteness, remotest, Theodosius, theologians
4 Syllables: UUSU
5 Syllables: UUUSU
Found 85 words across 5 groupings. Skipped 3 excess words of a similar stem.