Or search: ok, okay, decent, alright, cheering, passable, tolerable, copacetic, copasetic, copesetic, acceptable, comforting
2 Syllables: SU
Abbe, Abbey, acme, actually, aptly, axes, badly, Bradley, cadre, craggy, Daddy, fatty, flabby, flatly, gladly, hackney, Hadley, haply, happy, Hatfield, khaki, madly, Maggie, paddy, sadly, shabby, shaggy, taxi, waxy
3 Syllables: SUU
Aberdeen, batteries, battery, factories, factory, flatteries, flattery, latterly, laxity, rhapsody, Saturday, Saxony, tactfully, Thackeray
3 Syllables: USU
exactly, unhappy
4 Syllables: USUU
olfactory, refractory
4 Syllables: UUSU
Cincinnati
5 Syllables: UUSUU
manufactories, manufactory, satisfactorily
6 Syllables: UUUSUU
unsatisfactory

Found 52 words across 7 groupings. Skipped 4 excess words of a similar stem.