1 Syllable: S
auch, blocks, blots, boss, box, bras, broth, cars, cause, Chas, chops, Claus, clause, claws, clocks, cloth, cocks, cops, copse, cos, cost, cough, Cox, Croft, crops, cross, Das, docks, docs, dodge, dos, dost, doth, dots, draws, drops, dross, flaws, flocks, Fox, frocks, frost, froth, gauze, gloss, Goths, Gough, Grosse, hawks, Hodge, hops, jaws, knocks, Knopf, knots, Knox, Koch, las, laws, locks, lodge, loft, Los, lost, loth, lots, mas, masque, mav, mocks, mos, mosque, moss, moth, mots, notch, nots, off, oft, ox, oz, pas, pause, paws, plots, pots, pox, Prof, props, Raj, rocks, Ross, Roth, salve, sauce, saws, scoff, Scotch, Scots, Scott's, Shaw's, shocks, shops, shots, Slav, slots, socks, soft, spots, squash, stalks, stocks, stops, straws, suave, swathed, talks, thoughts, tops, toss, troth, trough, vase, vos, vox, waft, walks, was, wash, wasp, wast, watch, Watts, wroth, yachts
2 Syllables: US
across, adopts, aloft, Alsace, applause, approx, barrage, because, debauch, despots, dislodge, embossed, exhaust, garage, imposts, massage, mirage, recrossed, unwashed, withdraws
3 Syllables: UUS
Found 156 words across 3 groupings. Skipped 28 excess words of a similar stem.