2 Syllables: SU
bias, blighted, blinded, brightest, cited, climate, crisis, cyclic, cypress, Cyprus, Cyrus, diet, direst, driest, dryness, eyelid, fibrous, finest, glided, guided, highest, Highness, ibis, iris, Irish, Isaac, Isis, islet, knighted, Leipsic, Leipzig, lias, lifeless, lighted, lightest, minded, minus, nicest, nitric, Pilate, pilot, pious, pirate, Pius, plighted, priceless, prided, primus, prius, private, psychic, quiet, righted, righteous, riot, shyness, sided, sighted, Silas, sinus, slighted, slightest, stylish, Tigris, Titus, typhus, violet, virus, whitish, widest, winded, wisest, Wyatt
2 Syllables: US
3 Syllables: USU
affrighted, alighted, Aquinas, arthritis, benighted, bronchitis, collided, conciseness, confided, Darius, decided, delighted, derided, desirous, disquiet, divided, Elias, excited, ignited, impious, incited, indicted, inviolate, invited, Matthias, misguided, Osiris, papyrus, presided, provided, recited, reminded, requited, resided, shortsighted, subsided, Tobias, unbiased, unbiassed, United, unquiet, unrighteous
4 Syllables: UUSU
Antoninus, carbohydrate, coincided, elegiac, Himalayas, meningitis, reunited, subdivided, ultraviolet, undecided, undivided, uninvited, unprovided, unrequited
Found 130 words across 4 groupings. Skipped 9 excess words of a similar stem.