2 Syllables: SU
50, briskly, busied, busy, Christi, Christie, dizzy, fifties, fifty, grizzly, histories, history, Kingsley, Lichfield, Livy, misty, pithy, pristine, privy, richly, risky, Ritchie, Smithfield, stiffly, swiftly, thrifty, whiskey, whisky
3 Syllables: USU
4 Syllables: UUSU

Found 32 words across 3 groupings.