Or search: gouger, scammer, grifter, welsher, swindler, chiseler, chiseller, defrauder
2 Syllables: SU
cellar, dweller, elder, Ellsworth, Elmer, feller, healthier, Heller, helper, Keller, Melbourne, seller, shelter, stellar, teller, wealthier, welter
3 Syllables: USU
propeller

Found 18 words across 2 groupings. Skipped 8 excess words of a similar stem.