Or search: bench, furnish, plateau, terrasse, architecture
1 Syllable: S
Rep
2 Syllables: SU
beverage, hemorrhage, leverage, veterans
3 Syllables: SUU
carriages, crevices, decorative, denizens, equipage, heritage, medicines, menaces, messages, narrative, necklaces, negative, prefaces, premises, purposive, relative, Saracens, sedative, skeletons, specimens, threatenings
4 Syllables: USUU
benefices, comparisons, competitive, correlative, imperative
5 Syllables: UUSUU
representative

Found 32 words across 5 groupings. Skipped 6 excess words of a similar stem.