3 Syllables: SUU
Augustine, modestly, modesty, obviously, Odyssey, prodigies, prodigy, thoughtlessly
4 Syllables: USUU
autocracy, biographies, biography, bureaucracy, democracies, democracy, ethnography, geography, hypocrisy, orthography, photography, theocracy, topography, typography
5 Syllables: UUSUU
aristocracy, bibliographies, Bibliography
6 Syllables: UUUSUU
autobiography, historiography

Found 27 words across 4 groupings.