Or search: jam, impede, barrier, occlude, blockade, obstruct, barricado
3 Syllables: SUU
Adelaide, aeroplane, balustrade, barricade, Faraday, Paraguay, paraphrase, renegade, resumes, retrograde
4 Syllables: USUU
interrogate

Found 11 words across 2 groupings. Skipped 2 excess words of a similar stem.