2 Syllables: SU
bender, censors, censure, center, centre, denser, denver, embers, enter, fender, gender, gentler, lender, leonard, member, mentor, render, sender, slender, spencer, spencer's, spenser, splendor, splendour, temper, templars, tempter, tender, tenor, tenure, tremor, vendor, venture
3 Syllables: USU
adventure, avenger, condenser, december, defender, dismembered, dispenser, dissenter, distemper, engender, indenture, inventor, november, offender, pretender, remember, september, surrender
4 Syllables: UUSU
Found 52 words across 3 groupings. Skipped 34 excess words of a similar stem.