2 Syllables: SU
Arbor, Archer, ardor, armor, armour, Arthur, Arthur's, barber, Barker, barter, boarders, border, Carter, Carver, charger, charmer, charter, coarser, corner, courtier, darker, farmer, farther, foreigners, Foreword, former, Forster, forward, gardeners, Gardiner, Gardner, garner, Garter, harbor, harbour, harder, Harper, Harper's, harsher, Hartford, Harvard, Hertford, horror, larder, larger, marker, martyr, mortar, mourner, northern, northward, orchard, order, Parker, Parker's, parlor, parlour, partner, porter, Puerto, quarter, sharper, shorter, smarter, starboard, starter, Tartar, torpor, torture, warmer, Warner, warrior, Yorker, Yorkshire
3 Syllables: SUU
auditors, carpenter, commoner, coroner, corridor, forerunner, forester, gardener, gardener's, gossamer, monitor, officer, oftener, Oliver, opener, orator
3 Syllables: USU
departure, disorder, explorer, exporters, henceforward, importer, informer, performer, recorder, reformer, reporter, restorer, straightforward, supporter, thenceforward, threequarters, transformer
4 Syllables: SUUU
4 Syllables: USUU
4 Syllables: UUSU
Found 117 words across 6 groupings. Skipped 69 excess words of a similar stem.