2 Syllables: SU
ashes, average, badges, batches, catches, Catholics, clashes, classes, crashes, dashes, Fascist, flashes, gases, glasses, grasses, hatches, lashes, lavish, masses, massive, matches, matchless, passage, passes, passeth, passive, patches, ravage, ravished, sashes, savage, scratches, snatches, splashes
3 Syllables: USU
Found 42 words across 2 groupings. Skipped 3 excess words of a similar stem.