Or search: historian, historiographer
3 Syllables: SUU
critically, fixity, ministries, typically, wickedly
4 Syllables: USUU
activities, admittedly, avidity, benignity, cupidity, Euripides, facilities, iniquities, iniquity, lucidity, malignity, obliquity, prolixity, stupidity, uncritically, validity
5 Syllables: UUSUU
analytically, disabilities, disability, eccentricities, liabilities, sensibilities

Found 27 words across 3 groupings.