3 Syllables: SUU
aggregates, analyst, apposite, Arabic, asterisk, botanist, candidate, catalyst, choleric, colonist, Dominic, dramatist, naturalists, obelisk, opposite, palaces, politic
4 Syllables: USUU
anatomist, Annapolis, Apocalypse, apologist, biologist, economist, geologists, immoderate
5 Syllables: UUSUU
anthropologist, archaeologist, Indianapolis, Minneapolis, physiologist, sociologist

Found 31 words across 3 groupings. Skipped 14 excess words of a similar stem.