Or search: ellas, greece
2 Syllables: SU
arches, Argus, artist, artless, Aug, August, Auguste, barges, bogus, bonnets, bonus, Boris, broadest, brokerage, carcase, carcass, Cardiff, carnage, Carthage, cartridge, caucus, cautious, charges, Charles's, chorus, closeness, closest, closets, coarseness, coarsest, Coleridge, comets, cordage, cornice, Cornish, corpses, corpus, courses, darkest, darkness, Dartmouth, droplets, farthest, flawless, focus, focussed, forage, forces, forest, forges, formless, Forrest, fortress, garbage, garnished, Georges, glorious, goblets, goddess, godless, gorgeous, gorges, gossips, grossest, grossness, hardest, hardness, harmless, harness, harshness, harvest, heartless, Hollis, honest, hopeless, Horace, horses, hostess, hottest, Jarvis, Jonas, Josef, Joseph, Joseph's, knowest, largeness, largest, lawless, locus, locust, Lois, lotus, lowest, lowness, marches, Marcus, Marius, Marquess, marshes, Marxist, Maurice, modest, modus, Morris, mortgage, mortis, Moses, nauseous, nobis, noblest, Norris, Norwich, notice, novice, office, onus, opus, orbis, Orpheus, ostrich, Otis, partridge, Paulus, plaudits, pockets, poets, polish, Popish, porches, porous, porridge, portage, Portsmouth, products, profits, prolix, promise, prophets, Psalmist, raucous, rockets, Romish, sawdust, Scottish, sharpest, sharpness, shortage, shortest, shortness, slowest, slowness, smallest, smartness, sockets, solace, sonnets, sophist, soreness, sources, sportive, spotless, Stoics, storage, tallest, tarnish, Tarsus, Taurus, Thomas, thoughtless, topics, torches, tortoise, tropics, varnish, Wallace, Wallis, warmest, Yarmouth
3 Syllables: SUU
3 Syllables: USU
4 Syllables: UUSU
5 Syllables: UUUSU

Found 230 words across 5 groupings. Skipped 22 excess words of a similar stem.