2 Syllables: SU
bogus, bonus, chorus, closest, coarseness, cordage, corpses, corpus, courses, Doris, focus, focussed, forest, Forrest, fortress, Georges, glorious, gorgeous, gorges, grossness, hopeless, Horace, horses, hostess, Jonas, Josef, Joseph, Joseph's, knowest, locus, locust, Lois, lotus, lowest, lowness, modus, Morris, mortgage, Moses, notice, onus, opus, Orpheus, poets, porches, porous, porridge, portage, Portsmouth, shortage, shortness, slowest, slowness, soreness, sources, storage, Taurus, tortoise, warmest
3 Syllables: USU
amorphous, atrocious, censorious, enormous, ferocious, inglorious, laborious, necrosis, neurosis, notorious, opprobrious, precocious, prognosis, psychosis, remorseless, remotest, Thesaurus, victorious
4 Syllables: UUSU
5 Syllables: UUUSU
Found 82 words across 4 groupings. Skipped 6 excess words of a similar stem.