2 Syllables: SU
Everett, separate
3 Syllables: SUU
baronet, celebrate, credulous, decorate, decorous, dedicate, deficit, definite, delegate, delicate, deprecate, desolate, edifice, educate, elevate, emanate, emigrate, estimate, etiquette, Federalist, garrulous, generate, generous, Genesis, hesitate, meditate, Methodist, Pegasus, penetrate, perilous, predicate, prejudiced, querulous, recklessness, requisite, resinous, restlessness, resume, segregate, separates, tetanus, treacherous, venerate, venomous
4 Syllables: USUU
accelerate, asparagus, commemorate, confederate, Connecticut, degenerate, disseminate, Emeritus, incredulous, indefinite, interrogate, investigate, inveterate, necessitate, perpetuate, prerequisite, regenerate, ungenerous
5 Syllables: UUSUU
Found 66 words across 4 groupings. Skipped 18 excess words of a similar stem.