Or search: lob, bowl, deed, jump, push, heave, launch, thrust, dribble, jumping, pulling, pushing, rolling, ejection, shooting
2 Syllables: SU
Cullen, earldom, sullen, Sultan, suppliant, Vulcan
3 Syllables: USU
compulsion, consultant, convulsion, emulsion, expulsion, exultant, indulgence, indulgent, repulsion, resultant, revulsion, Tertullian

Found 18 words across 2 groupings. Skipped 4 excess words of a similar stem.