1 Syllable: S
alms, aud, aunt, awed, balm, baud, blond, blonde, Bob, bobbed, bod, bog, bogged, bogs, bom, bomb, bon, bonds, Bonn, bonne, Braun, broad, bronze, Caen, calm, caused, Claude, clod, clog, clogged, clogs, cob, Cobb, Cod, cog, com, Comm, Comp, Comte, con, Conde, Cong, Conn, cons, Const, Conte, daubed, dawn, Dodd, dodged, dog, dogged, dogs, dom, don, donned, dons, dont, drawn, fawn, flawed, flogged, FOB, fog, fond, font, fraud, frog, gaunt, gnawed, God, gone, gong, grog, Hahn, Han, haunt, hob, Hobbes, hod, hog, Hogg, hogs, homme, Hon, Hong, job, jog, John, Jon, Jong, Juan, Kahn, Khan, knob, Kong, laud, launch, lawn, lodged, log, Lon, long, mam, Maud, mob, mod, mom, mon, monde, Mons, Mont, nod, nom, non, odd, on, palm, paused, pawn, pod, pomp, pon, ponds, Pons, Pont, Prague, prob, prod, Prom, prompt, Psalm, qualms, quam, quod, rob, robbed, robs, rod, rom, Ron, sawed, sawn, shod, snob, sob, sobbed, sobs, sod, som, Somme, song, spawn, squad, staunch, strong, swamp, Swan, swathed, tang, taunt, thawed, thon, thong, throb, throbbed, throbs, throng, tian, Tod, Tom, tongs, trod, Vaughan, von, wad, wan, want, won, wrong, yawn, yon
2 Syllables: SU
baton, enfant, Islam, Milan, Punjab
2 Syllables: US
abroad, along, Alphonse, anon, Antoine, applaud, avant, begone, belong, beyond, Ceylon, defraud, dislodged, Durand, embalmed, ensconced, entente, facade, foregone, Hassan, Iran, Koran, lifelong, prolong, respond, response, Rouen, salon, savant, Sorbonne, Taiwan, thereon, Toulon, upon, Vermont, whereon, withdrawn
3 Syllables: UUS

Found 238 words across 4 groupings. Skipped 64 excess words of a similar stem.