2 Syllables: SU
biased, blighted, blinded, brightest, cited, climates, cyclic, diet, direst, driest, eyelid, finest, glided, guided, highest, Isaac, islet, knighted, Leipsic, Leipzig, lighted, lightest, minded, nicest, nitric, Pilate, pilot, pirate, plighted, prided, private, psychic, quiet, righted, riot, sided, sighted, slighted, slightest, violet, widest, winded, wisest, Wyatt
3 Syllables: USU
affrighted, alighted, benighted, collided, confided, decided, delighted, derided, disquiet, divided, excited, ignited, incited, indicted, inviolate, invited, misguided, presided, provided, recited, reminded, requited, resided, shortsighted, subsided, unbiased, unbiassed, United, unquiet
4 Syllables: UUSU
carbohydrate, coincided, elegiac, reunited, subdivided, ultraviolet, undecided, undivided, uninvited, unprovided, unrequited
Found 84 words across 3 groupings. Skipped 8 excess words of a similar stem.