2 Syllables: SU
brougham, cuban, dukedom, fluent, freudian, fusion, gruesome, houston, human, julian, loosen, lucan, lucian, lumen, movement, museum, neumann, newman, newton, newton's, nuisance, proven, prudence, prudent, reuben, rubens, ruin, student, truant, truman, union, unum
3 Syllables: USU
ablutions, acumen, albumen, albumin, allusion, amusement, collusion, communion, conclusion, confusion, delusion, diffusion, dilution, disputants, disunion, effusion, exclusion, herculean, illumined, illusion, improvement, imprudence, imprudent, inclusion, inducement, infusion, inhuman, intrusion, methuen, occlusion, peruvian, pollution, profusion, pursuance, pursuant, recruitment, reunion, seclusion, solution, transfusion, translucent
4 Syllables: UUSU
absolution, attribution, constitution, contribution, devolution, diminution, disillusion, dissolution, distribution, elocution, evolution, execution, institution, involution, jurisprudence, persecution, prosecution, prostitution, resolution, restitution, retribution, revolution, substitution, superhuman
5 Syllables: UUUSU
Found 101 words across 4 groupings. Skipped 33 excess words of a similar stem.