2 Syllables: SU
billet, Bridget, civic, clearest, clinic, cricket, critic, cynic, digit, district, edict, Egypt, Felix, finished, freest, Friedrich, gibbet, helix, limits, lyric, mimic, mystic, mythic, Philip, Phillip, Phoenix, physic, picket, prefix, quickest, realist, rickets, scenic, secret, spirit, thickest, thicket, thinnest, ticket, visit
3 Syllables: USU
acetic, albeit, artistic, collegiate, diminished, elicit, exhibit, extremist, idealist, idyllic, linguistic, Pacific, prolific, realistic, revisit, satiric, Semitic, simplistic, solicit, specific, statistic, strategic, stylistic, terrific, unfinished
3 Syllables: UUS
4 Syllables: UUSU
altruistic, analytic, atheistic, Calvinistic, catalytic, communistic, fatalistic, hieroglyphic, humanistic, idealistic, impolitic, journalistic, mechanistic, metaphysics, monolithic, nationalistic, naturalistic, optimistic, panegyric, paralytic, parasitic, pessimistic, rationalistic, scientific, socialistic, undiminished, unrealistic
5 Syllables: UUUSU
antagonistic, capitalistic, characteristic, electrolytic, encyclopedic, monopolistic, ritualistic, unscientific
6 Syllables: UUUUSU
7 Syllables: UUUUUSU
Found 105 words across 7 groupings. Skipped 25 excess words of a similar stem.