1 Syllable: S
auf, aus, aux, beau, beaux, blouse, blow, blown, blows, bo, boast, boat, bold, boll, bolt, bone, both, boughs, bounds, bouse, bow, bowl, bowles, bowls, bro, broach, broke, brooch, bros, browns, brows, browse, cau, cho, choke, chose, chrome, cloak, clone, close, clothe, clouds, clove, clowns, co, coach, coal, coast, coat, coax, code, coke, cold, cole, colt, comb, cone, cope, cote, couch, cove, cows, crouch, crow, crowds, crowell, crowns, crows, doe, dole, dome, dope, dos, dose, dough, dove, downs, doze, droll, drone, drove, eau, faust, flo, float, flow, flown, flows, fo, foam, foe, fold, folk, founds, fro, frowns, froze, ghost, globe, glow, go, goad, goal, goat, goes, goethe, gold, gome, gowns, groan, groat, grope, gros, grounds, grouse, grove, grow, grown, grows, growth, haute, ho, hoax, hoe, hold, hole, holmes, holt, home, hone, hope, hose, host, hounds, house, hove, how's, joan, joe, joel, joke, jolt, jones, jos, jove, knoll, know, knowles, known, knows, koch, load, loaf, loam, loan, loath, loathe, loaves, lobe, lone, los, lounge, louse, low, lowe, lowell, lows, mo, moan, moat, mode, mold, mole, mon, most, mot, mote, mould, mounds, mouse, mouth, mow, mown, no, node, nose, note, nouns, nov, oak, oat, oath, oats, ode, oh, old, ole, ope, ost, oust, owe, own, phone, plough, plows, poe, poke, pole, polk, poll, pope, pose, post, pouch, pounds, pro, probe, prone, pros, prose, quo, quote, quoth, retold, rhode, rhone, roach, road, roam, roan, roast, robe, roche, rode, roe, rogue, role, roll, rome, rome's, rope, rose, rote, rounds, rouse, rove, row, rowe, rows, scold, scope, scroll, sew, sewn, shoal, shone, show, shown, shows, shrouds, sloan, sloane, slope, sloth, slow, smoke, smote, snow, so, soak, soap, sol, sole, soul, sounds, south, sow, sown, sows, spoke, spouse, stoke, stole, stone, stove, stow, stowe, strauss, strode, stroke, stroll, strove, tho, those, though, throat, throes, throne, throw, thrown, throws, toad, toast, toe, told, toll, tome, tone, tow, towns, trop, troth, vogue, vols, volt, vote, vouch, vows, whole, woe, woke, wont, wove, wrote, yo, yoke, yolk, zone
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 462 words across 6 groupings. Skipped 206 excess words of a similar stem.