Or search: nap, bout, morn, peak, tour, bloom, epoch, flush, hitch, lease, trope, heyday, hockey, drouth, usance
2 Syllables: SU
bearded, Hesiod, idioms, Iliad, lineage, mediums, myriad, period, premiums, Scythians, spirit, Syrians, syrup
3 Syllables: USU
Armenians, Assyrians, Athenians, comedians, Parisians
4 Syllables: UUSU
Presbyterians

Found 19 words across 3 groupings. Skipped 1 excess word of a similar stem.