Or search: rip, chou, cole, hook, kail, kale, loot, gelt, pelf, clams, dough, filch, lolly, pinch, sneak
3 Syllables: SUU
activist, additive, averages, carriages, damages, manages, packages, parishes, passages, practices, practises, ravages, savages, vanishes
4 Syllables: USUU
establishes, imaginings

Found 16 words across 2 groupings. Skipped 1 excess word of a similar stem.