Or search: coagulated, concavity, concrete, congealed, convexity, crystal, cube, cubic, cylinder, frustum, hearty, homogeneous, homogenous, incurvation, jelled
2 Syllables: SU
ahmed, almond, auckland, blossomed, blotted, bottomed, broadened, cautioned, clotted, dotted, falkland, frosted, halted, holland, nodded, nostrand, plotted, pollock, salted, scotland, softened, solids, spotted, squalid, stolid, trollope, trotted, wallet, walnut
3 Syllables: USU
accosted

Found 30 words across 2 groupings. Skipped 1 excess word of a similar stem.