2 Syllables: SU
buckler, Butler, Butler's, butter, cluttered, cupboard, Cutler, cutter, flutter, gutter, Hubbard, jugglers, mutter, rubber, rudder, rupture, Rutgers, shudder, shutter, smugglers, structure, stubborn, Stuttgart, subtler, suburb, succor, succour, sucker, supper, Tucker, upper, upward, utter
3 Syllables: USU
4 Syllables: UUSU
Found 36 words across 3 groupings. Skipped 20 excess words of a similar stem.