2 Syllables: SU
blushing, brushing, bustling, buzzing, clutching, cousin, Covent, covering, crushing, custom, dozen, dusting, Dutchman, flushing, grudging, gushing, hovering, husband, judgement, judging, judgment, Justin, loving, Muslims, muslin, nothing, oven, Prussian, puffing, puzzling, roughened, ruffian, rushing, Ruskin, Russian, rusting, rustling, shoving, shuffling, stuffing, suffering, thrusting, touching, trudging, trusting, Tuscan
3 Syllables: USU
accustom, adjusting, adjustment, Augustan, combustion, concussion, discussing, discussion, disgusting, entrusting, escutcheon, Etruscan, percussion, readjustment
4 Syllables: UUSU
Found 62 words across 3 groupings. Skipped 17 excess words of a similar stem.