2 Syllables: SU
abbess, active, affix, Agnes, Alice, amis, axes, Bacchus, baggage, banish, Baptist, blackish, blacksmith, brackets, brackish, cabbage, Calif, captive, chalice, classics, fabrics, famished, Fascist, graphics, jackets, lapses, lavish, malice, matchless, package, packets, panics, Papists, Paris, parish, Patrick's, plastics, practice, practise, Radcliffe, ravished, satis, Spanish, statics, taxes, trackless, vanish, waxes
3 Syllables: USU
adaptive, attractive, ceramics, collapses, combative, dynamics, establish, fanatics, gymnastics, inactive, inhabits, italics, mechanics, pugnacious, rapacious, reactive, refractive, relapses, relaxes
4 Syllables: UUSU
5 Syllables: UUUSU
Found 75 words across 4 groupings. Skipped 10 excess words of a similar stem.