1 Syllable: S
arc, arch, arcs, ard, are, ark, arm, armes, arms, art, bar, barb, bard, barge, bark, barn, Barnes, barns, Barr, Barre, bars, Bart, car, cards, Carl, carp, Carr, cars, cart, carte, carts, carve, char, charge, Charles, charm, charred, chart, Clark, Clarke, Clarke's, Clark's, Czar, dar, dark, darn, dart, far, farce, farm, fart, gar, garb, gard, garde, gnarled, guard, har, Hark, harm, harp, harsh, Hart, heart, hearth, hearts, jar, jarred, jars, Karl, lar, larch, lard, lark, mar, Marc, March, Marche, mark, marl, marred, Mars, marsh, mart, Marx, our, par, parched, Park, Parke, parks, Parr, pars, part, parte, parts, R, R's, sar, scar, scarf, scarred, scars, shark, sharp, Sharpe, smart, snarl, spar, spark, spars, sparse, star, starch, stark, Starr, stars, start, starve, tar, tarn, tarred, tart, voir, wor, yard, yarn
2 Syllables: SU
2 Syllables: US
3 Syllables: UUS
4 Syllables: UUUS

Found 164 words across 5 groupings. Skipped 59 excess words of a similar stem.