2 Syllables: SU
ablest, Ada, aimless, Ala, alia, Amos, Andrea, anus, aqueous, Asia, atheist, baseless, baseness, bases, basest, basis, Beta, blameless, braces, bravest, Buenos, Caius, cases, changes, chases, Dana, data, Davis, drainage, eta, Eva, faces, faintest, faintness, famous, favorites, gala, gauges, gazes, graceless, gracious, gratia, greatest, greatness, heinous, Janus, laces, lameness, lateness, latest, maitre, maketh, mania, Mesa, nameless, pages, painless, paleness, Pavia, phases, phrases, places, plainest, plaintiff, races, radius, raises, ranges, safest, sameness, shameless, shapeless, spaces, spacious, stainless, status, strangeness, taketh, tasteless, traces, trachea, vases, Vega, wages, waitress, Weymouth
2 Syllables: US
3 Syllables: USU
acacia, Albania, Andreas, Arabia, Arcadia, audacious, Australia, Batavia, capacious, contagious, courageous, cutaneous, ERRATA, exchanges, extraneous, fallacious, hiatus, Ignatius, Isaiah, Jamaica, loquacious, Malaya, mammalia, Omega, outrageous, regalia, Rumania, sagacious, spontaneous, Tasmania, tenacious, Teresa, Theresa, ungracious, vexatious, vivacious, voracious
4 Syllables: UUSU
advantageous, Athanasius, efficacious, Himalayas, instantaneous, Lithuania, miscellaneous, ostentatious, Pennsylvania, Scandinavia, simultaneous, subcutaneous, subterraneous, Transylvania, Venezuela
5 Syllables: UUUSU
contemporaneous, disadvantageous, extemporaneous, Mesopotamia, modernization, paraphernalia, unostentatious
Found 146 words across 5 groupings. Skipped 2 excess words of a similar stem.