2 Syllables: SU
blushes, bunches, buttoned, buttons, clutches, compass, cousins, cumbrous, customs, dozens, Drummond, Dundas, flooded, fungus, hubbub, hunted, luggage, numbness, oneness, ovens, Prussians, pumice, roughened, rugged, rushes, Russians, Russia's, rusted, Rutland, summoned, summons, sumptuous, tonnage, touches, unctuous, upland, wondrous, youngest
2 Syllables: US
3 Syllables: USU
4 Syllables: UUSU
Found 49 words across 4 groupings. Skipped 5 excess words of a similar stem.