Or search: iranian, pahlavi, parthian
3 Syllables: SUU
aimlessly, Avery, bakery, bravery, drapery, fatally, favorably, graciously, granary, halfpenny, hastily, knavery, laity, Papacy, playfully, racially, raillery, savory, savoury, shamelessly, slavery, tracery
4 Syllables: USUU
chicanery, courageously, outrageously, spontaneously, tenaciously, unsavory
5 Syllables: UUSUU
advantageously, ostentatiously, quantitatively, simultaneously, unmistakably
6 Syllables: UUUSUU
contemporaneously
6 Syllables: UUUUUS
heterogeneity

Found 35 words across 5 groupings.