2 Syllables: SU
ablest, aimless, alias, Amos, anus, aqueous, atheist, baseless, baseness, bases, basest, basis, bias, blameless, blindness, braces, bravest, brightest, brightness, Buenos, Caius, cases, changes, chases, childless, China's, climates, crisis, cypress, Cyprus, Cyrus, Davis, direst, drainage, driest, dryness, faces, faintest, faintness, famous, favorites, fibrous, finest, gauges, gazes, graceless, gracious, greatest, greatness, guileless, guises, heinous, highest, Highness, ibis, ices, iris, Isis, Janus, kindest, kindness, laces, lameness, lateness, latest, lias, lifeless, lightest, lightness, likeness, liveliest, maketh, mightiest, mildest, mildness, mileage, minus, nameless, pages, painless, paleness, phases, phrases, pilots, pious, pirates, Pius, places, plainest, plaintiff, priceless, prices, primus, prius, privates, prizes, races, radius, raises, ranges, righteous, riots, ripeness, rises, safest, sameness, shameless, shapeless, shyness, Silas, sinus, sizes, slices, slightest, spaces, spacious, spices, stainless, status, strangeness, taketh, tasteless, tightness, Tigris, timeless, tiniest, Titus, traces, typhus, vases, vices, violets, virus, wages, waitress, Weymouth, whiteness, widest, wildness, wisest
2 Syllables: US
3 Syllables: USU
advices, Andreas, Aquinas, arthritis, audacious, bronchitis, capacious, comprises, contagious, courageous, cutaneous, Darius, desirous, devices, Elias, exchanges, extraneous, fallacious, Goliath, hiatus, Ignatius, impious, loquacious, Matthias, outrageous, papyrus, politeness, sagacious, spontaneous, tenacious, Tobias, unbiased, unbiassed, ungracious, unkindness, unrighteous, uprightness, vexatious, vivacious, voracious
4 Syllables: UUSU
advantageous, Antoninus, Athanasius, Carolinas, efficacious, instantaneous, meningitis, miscellaneous, ostentatious, simultaneous, subcutaneous, subterraneous
5 Syllables: UUUSU
Found 197 words across 5 groupings. Skipped 2 excess words of a similar stem.