2 Syllables: SU
90, blindly, blithely, brightly, crises, diary, dryly, fiery, finely, Friday, grimy, highly, hygiene, icy, idly, ivory, ivy, kindly, knightly, lightly, likely, lively, mighty, mildly, nicely, nightly, nineties, ninety, Priory, psyche, Reilly, rightly, Riley, shiny, shyly, slightly, slimy, slyly, spicy, sprightly, tidy, tightly, timely, tiny, widely, wildly, Wiley, wily, windy, wisely
3 Syllables: SUU
3 Syllables: USU
Almighty, concisely, designedly, divinely, enquiry, Hawaii, politely, precisely, unkindly, unlikely, unsightly, untidy, untimely, unwisely
Found 65 words across 3 groupings. Skipped 1 excess word of a similar stem.