2 Syllables: SU
90, blindly, blithely, brightly, chimney, crises, dimly, dingy, dryly, finely, flimsy, flinty, Friday, grimly, grimy, guinea, highly, hygiene, icy, idly, increase, inde, Indies, inky, intrigue, iny, ivy, Jimmy, kindly, kine, kingly, Kingsley, knightly, lightly, likely, Lindsay, linseed, lively, mighty, mildly, mini, nicely, nightly, nimbly, nineties, ninety, Pliny, princely, psyche, Quincy, Reilly, rightly, Riley, shiny, shyly, simply, singly, skinny, slightly, slimy, slyly, spicy, sprightly, Springfield, stingy, thinly, tidy, tightly, timely, tiny, Vinci, widely, wildly, Wiley, wily, wintry, wisely
3 Syllables: USU
Almighty, concisely, designedly, distinctly, divinely, Hawaii, McKinley, politely, precisely, succinctly, unkindly, unlikely, unsightly, untidy, untimely, unwisely
4 Syllables: UUSU
Found 95 words across 3 groupings. Skipped 6 excess words of a similar stem.