Or search: expert, healer, sangoma, herbalist, curandera, curandero, alleviator, osteopathist
2 Syllables: SU
desperate, Frederick, separate
3 Syllables: SUU
Arabic, Baroness, Benedict, benefice, benefit, derelict, Federalists, feminist, heretic, Methodist, narrative, Nemesis, prejudice, rhetoric, separates, specialist, terrorist
4 Syllables: USUU
imperative, unprejudiced

Found 22 words across 3 groupings. Skipped 5 excess words of a similar stem.