2 Syllables: SU
Barrett, benches, Bennet, Bennett, blemish, checklist, chemist, cherish, cleric, credit, debit, Denis, Dennis, dentist, desperate, devilish, Ellis, epic, Eric, Erich, Essex, ethic, fairest, fences, ferric, fetish, Flemish, Frederic, Frederick, garish, garret, Garrett, Garrick, Greenwich, Harris, hellish, Herrick, Kenneth, Kentish, lenses, Memphis, menace, merits, metric, Paris, parish, pensive, perish, prelate, premise, Prentice, reddish, relic, relish, respite, Senate, senses, sheriff, sheriff's, spendthrift, tennis, tenses, trenches, Venice
3 Syllables: SUU
3 Syllables: USU
acetic, aesthetic, angelic, appellate, appendage, apprentice, ascetic, assemblage, athletic, attentive, authentic, barbaric, condenses, cosmetic, decrepit, defenses, defensive, dispenses, domestic, embellish, emetic, endemic, esthetic, expenses, expensive, extensive, generic, genetic, geometric, Hellenic, Homeric, hysterics, incentive, intensive, inventive, kinetic, magnetic, majestic, obstetrics, offenses, offensive, pathetic, percentage, phonetic, poetic, polemic, preventive, prophetic, relentless, replenish, retentive, symmetric, synthetic, systemic, theoretic, unblemished
4 Syllables: UUSU
academic, apathetic, apprehensive, arithmetic, atmospheric, comprehensive, diabetic, energetic, epidemic, esoteric, hygienic, inattentive, inexpensive, inoffensive, pathogenic, sacrilegious, sympathetic
5 Syllables: UUUSU
6 Syllables: UUUUSU
Found 142 words across 6 groupings. Skipped 25 excess words of a similar stem.