1 Syllable: S
as, beds, begs, bends, bess, best, beth, bids, bins, bitch, blends, bless, blest, bliss, breadth, breast, breath, brest, bridge, briggs, brings, brisk, cess, chef, chess, chest, chez, chins, chris, cleanse, cleft, cliff, clings, crest, crisp, cus, deaf, death, deft, dens, depth, des, desk, dif, digs, dis, disc, dish, disk, diss, dist, ditch, dreads, dregs, dress, drift, edge, eft, eggs, ends, ers, ess, esse, etched, fens, fetch, fifth, figs, fins, fish, fiske, fist, fitch, fledged, flesh, flings, fresh, friends, fringe, frith, gems, gens, gibbs, gift, gist, give, grist, guage, guess, guest, heads, hedge, heft, hens, hess, hesse, hinge, his, hissed, hist, hitch, hymns, ich, ids, if, iff, ings, inns, ins, is, ish, itch, jeff, jest, just, kids, kings, kiss, kith, las, ledge, left, legs, lends, length, lens, les, lest, lev, lids, lift, limbs, lis, lish, lisp, list, liv, live, mens, mesh, mess, mich, midst, mis, missed, mist, myth, nes, nest, niche, nth, pegs, pens, pest, pigs, pins, pitch, pith, pledge, pres, presse, pris, ques, quest, quiz, reds, ref, reft, rest, rev, ribs, rich, ridge, rift, rims, rings, risk, saith, sends, sens, sess, seth, sheds, shift, shins, shreds, sich, sieve, sift, sims, singed, sings, sins, sis, sixth, sketch, skiff, skins, sledge, slings, smith, smyth, sniff, spends, spins, spreads, springs, stems, stiff, stings, stitch, strength, stress, stretch, strings, swift, swift's, swims, swings, swiss, switch, tends, tens, tenth, test, thames, theft, things, this, threads, thrift, tinge, tins, tis, treads, trends, tres, twigs, twins, twist, twitch, vest, vis, vith, webs, wedge, west, west's, which, whiff, whigs, whims, whisked, whist, width, wigs, winds, wings, wins, wis, wish, wisp, witch, with, wrest, wretch, wrist, writhed, xliv, xxiv, xxxiv, yes, zest
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 409 words across 6 groupings. Skipped 121 excess words of a similar stem.