2 Syllables: SU
diaries, diary, fiery, ivory, Priory
3 Syllables: SUU
binary, bribery, diocese, dynasties, finery, inquiries, inquiry, primaries
3 Syllables: USU
enquiries, enquiry, entirely, entirety, untiring
4 Syllables: USUU
advisory, anxieties, proprieties, refinery, varieties
5 Syllables: UUSUU
supervisory

Found 24 words across 5 groupings. Skipped 1 excess word of a similar stem.