1 Syllable: S
3, aix, b, be, beach, bead, beak, beam, bean, beast, beat, beck, bed, bede, beds, bee, beech, beef, bees, beet, beg, begged, begs, bein, bend, bet, bien, bleach, bleak, bled, bleed, blend, breach, bread, breathe, bred, breech, breed, breeze, brief, b's, c, cease, cede, cheap, cheat, check, cheek, cheese, cheque, chief, clean, cleansed, cleave, clique, cod, creak, cream, crease, creed, creek, creep, crept, crete, czech, d, dead, deal, dean, deane, deans, debt, dec, deck, dee, deeds, deem, deep, denned, dept, depth, diem, dread, dream, dred, dregs, each, ease, east, eat, eaves, eb, ebb, ed, edged, eel, egg, eke, end, eve, ex, feast, feat, fed, fee, feeds, feel, fees, feet, fend, fi, fief, field, fiend, fils, flea, flecked, fled, fledged, flee, fleece, flees, fleet, fop, freak, fred, free, freeze, fret, fried, friend, frieze, gee, geese, gene, get, gleam, glean, glebe, glee, grease, greece, greed, greek, green, greene, greens, greet, gregg, grief, grieve, he, head, heal, heap, heat, heath, heats, heave, hedged, hee, heel, hemmed, he's, het, ids, ist, jean, jeanne, jeans, jet, keats, keel, keen, keep, keg, keith, kept, key, kiel, knee, kneel, knees, lea, leach, lead, leaf, league, leak, lean, leap, leapt, leas, lease, leash, least, leave, led, lee, leech, leeds, lees, leg, lege, legged, legs, leigh, leith, lend, let, lett, lettre, lex, lief, liege, lien, lieth, lille, me, mead, meade, meal, mean, meat, med, medes, meed, meek, meet, mein, meme, mend, met, mete, metz, mien, mise, mit, neal, neat, neath, neck, ned, nee, needs, neil, neill, net, next, nice, nicht, niece, oui, pea, peace, peach, peak, peal, peas, pease, peat, peck, peek, peel, peep, peg, penned, pep, pepys, pet, pete, pets, piece, pique, plea, pleads, pleas, please, pledged, pre, preach, priest, queen, reach, reads, real, reap, rec, red, ree, reeds, reef, reel, rees, reeve, reg, reid, rend, rep, ret, rex, ried, said, scene, scheme, scream, screech, screen, sea, seal, seam, seas, seat, sec, sect, see, seeds, seek, seem, seen, seep, sees, seest, seeth, seize, send, sep, sept, set, sett, sex, she, sheaf, sheath, sheaves, shed, sheen, sheep, sheep's, sheet, she's, shield, shred, shriek, si, sie, siege, ski, sled, sleek, sleep, sleet, sleeve, slept, sneak, sneeze, speak, spec, speck, sped, speech, speed, spend, spleen, spread, spree, squeak, squeeze, st, stead, steal, steam, steed, steel, steele, steep, stemmed, step, stepped, steppes, steps, steve, streak, stream, street, suite, sweat, swede, sweep, sweet, swept, tea, teach, team, teas, tease, teat, tech, ted, tee, teem, teen, teeth, tend, tete, tex, text, the, thebes, thee, theme, these, thi, thief, thread, threat, three, ti, tread, treat, tree, trek, trend, trieste, tweed, tween, veal, vet, vex, vive, we, weak, weal, wean, weave, web, webb, webs, wed, wedged, wee, weeds, week, ween, weep, weil, wept, wet, wheat, wheel, whet, wie, wield, wien, wreak, wreath, wreck, xlii, xliii, xlvi, xlvii, ye, yean, yeast, yet, yield, zeal
2 Syllables: SU
2 Syllables: US
13, 14, 15, 16, 18, 19, accede, accept, achieve, adept, affect, afield, aggrieved, agree, ahead, alleged, amend, antique, apiece, appeal, appease, append, ascend, asleep, attend, avenged, barnett, basely, befriend, beget, belief, believe, beneath, bequeath, bereaved, beseech, beset, besiege, bespeak, between, blaspheme, brunette, burmese, burnett, cadet, cadiz, canteen, cany, caprice, castile, chinese, christine, collect, commend, compete, complete, conceal, concede, conceit, conceive, condemned, congealed, conies, connect, contemned, contend, convene, coquette, cornet, cornfields, correct, crimean, critique, cui, cuisine, debris, decease, deceit, deceive, decree, defeat, defend, deflect, degree, delete, depend, descend, detect, direct, discreet, discrete, disease, displease, dissect, downstream, duet, dundee, effect, effete, eighteen, eject, elect, elite, emil, emile, entreat, erect, esprit, esteem, exceed, except, expect, expend, extend, extreme, fatigue, fayette, fifteen, fifthly, fixedly, foresee, foreseen, foresees, forget, fourteen, gazette, genteel, hoarsely, ideal, impeach, impede, indeed, inept, infect, inject, inspect, instead, intend, irene, joachim, kathleen, lessee, levine, louise, luis, machine, marie, marine, marquis, mclean, misdeeds, mislead, misled, motif, naive, neglect, nineteen, northeast, oblique, obscene, offend, ordeal, passim, pauline, perceive, perplex, petite, physique, police, pompeii, precede, prestige, pretend, proceed, protect, puerile, quartet, quebec, racine, ravine, recede, receipt, receive, redeem, reflect, regime, regret, release, relief, relieve, repeal, repeat, replete, reprieve, reread, respect, retreat, retrieve, reveal, revenged, routine, sabine, saline, sardines, secede, secrete, select, serene, sixteen, southeast, stampede, succeed, supreme, suspend, technique, thirteen, tibet, toilette, transcend, trustee, tv, unchecked, unclean, undreamed, unique, unleashed, unread, unreal, unsaid, unseen, upstream, vaccine, vignette, widespread
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS
5 Syllables: UUUUS
6 Syllables: UUUUUS

Found 804 words across 8 groupings. Skipped 366 excess words of a similar stem.