1 Syllable: S
12, Beck, bed, beg, begged, begs, Bel, bell, Belle, bells, belt, bet, bled, bread, bred, cell, Celts, check, cheque, crept, Czech, dead, dealt, debt, Dec, deck, del, dell, delle, delve, Dept, depth, dread, dred, dregs, dwell, dwelt, EB, ebb, ed, egg, Elbe, eld, elf, elk, ell, elle, elm, else, elves, ex, fed, fell, felt, flecked, fled, Fred, fret, gel, get, Gregg, head, health, held, hell, hell's, helm, help, het, jet, keg, kept, knell, knelt, L, lead, leaped, leapt, led, leg, legged, legs, let, Lett, lettre, lex, Med, Mel, mell, melt, met, Metz, neck, Ned, nel, Nell, net, next, peck, peg, pell, pelt, pep, pet, Phelps, quell, read, realm, rec, red, Reg, Rep, ret, Rex, said, sec, sect, sel, self, sell, selves, Sep, Sept, set, sett, sex, shed, shelf, shell, shelved, shelves, shred, sled, slept, smell, smelt, spec, speck, sped, spell, spelt, spread, stead, stealth, step, stepped, steppes, steps, sweat, swell, swept, Tech, ted, tell, tete, Tex, text, thread, threat, tread, trek, twelfth, twelve, vet, vex, wealth, web, Webb, webs, wed, Welch, weld, well, Welsh, Welt, wept, wet, whet, wreck, X, yell, yet
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 322 words across 6 groupings. Skipped 102 excess words of a similar stem.