Or search: plug, push, spur, boost, chess, favor, assign, favour, foster, tenure, brevet, depute, agitate, crusade, elevate
2 Syllables: SU
boasted, bolted, coated, floated, florid, folded, horrid, loaded, molded, motioned, noted, Oakland, opened, opiate, poet, Poland, roasted, Roebuck, Roland, Rowland, scolded, Soviet, torrid, voted
3 Syllables: USU
associate, betokened, denoted, devoted, eroded, exploded, outmoded, Potomac, reopened, revolted, unfolded, unloaded, unopened

Found 37 words across 2 groupings. Skipped 3 excess words of a similar stem.