Or search: garb, mask, cloak, gloss, attire, colour, hiding, conceal, dissemble, semblance, camouflage, concealing, masquerade, concealment, dissimulate
2 Syllables: SU
childish, eyelids, fineness, guises, ices, linings, mileage, nicest, prices, prizes, rises, risings, scientists, sizes, slices, spices, strivings, stylish, tidings, vices, whitish, wildest, writings
3 Syllables: USU
advises, arises, arthritis, assizes, comprises, conciseness, decisive, derisive, despises, devices, divisive, incisive, obliges, suffices, surmises, surprises
4 Syllables: UUSU
analyses, indecisive

Found 41 words across 3 groupings.