1 Syllable: S
alms, aunt, balm, blond, blonde, bom, bomb, bon, bonds, bonn, bonne, braun, bronze, caen, calm, com, comm, comp, comte, con, conde, cong, conn, cons, const, conte, dawn, dom, don, donned, dons, dont, drawn, fawn, fond, font, gaunt, gone, gong, hahn, han, haunt, homme, hon, hong, john, jong, juan, kahn, khan, kong, launch, lawn, lon, long, mam, mom, mon, monde, mons, mont, nom, non, on, palm, pawn, pomp, pon, ponds, pons, pont, prom, prompt, psalm, qualms, quam, rom, ron, sawn, som, somme, song, spawn, staunch, strong, swamp, swan, tang, taunt, thon, thong, throng, tian, tom, tongs, vaughan, von, wan, want, won, wrong, yawn, yon
2 Syllables: SU
2 Syllables: US
along, alphonse, anon, antoine, avant, begone, belong, beyond, ceylon, durand, embalmed, ensconced, entente, foregone, hassan, iran, koran, lifelong, prolong, respond, response, rouen, salon, savant, sorbonne, taiwan, thereon, toulon, upon, vermont, whereon, withdrawn
3 Syllables: UUS
commandant, correspond, denouement, hereupon, nonchalance, rapprochement, renaissance, talleyrand, thereupon, undergone, vietnam, whereupon
Found 151 words across 4 groupings. Skipped 46 excess words of a similar stem.