2 Syllables: SU
blister, blizzard, cistern, cither, Clifford, differ, fiddler, Fischer, Fisher, fissure, Gifford, giver, hither, listener, Lister, liver, livres, lizard, Mister, pitcher, prisoners, Pritchard, quiver, Richard, richer, river, scissors, shiver, sister, swifter, thither, whiskers, whisper, whither, wishers, wither, wizard
3 Syllables: SUU
3 Syllables: USU
4 Syllables: USUU
Commissioner, conspirator, deliverer, dissimilar, inquisitor, parishioners, perimeter, petitioner, practitioner, solicitor
Found 54 words across 4 groupings. Skipped 38 excess words of a similar stem.