Or search: sophism, sophistry, paralogism, misconception, pseudoscience, sophistication
2 Syllables: SU
families, family's
3 Syllables: SUU
agonies, batteries, fallacy, fantasies, flatteries, galleries, magazines, Majesties, Majesty's, maladies, salaries, strategies, tapestries, tragedies, vanities
4 Syllables: USUU
academies, analogies, analogy, calamities, capacities, catastrophes, formalities, realities
5 Syllables: UUSUU
abnormalities, generalities, technicalities

Found 28 words across 4 groupings.