Or search: trait, conceit, dresser, egotism, narcism, narcissism, worthlessness
2 Syllables: SU
families, family's
3 Syllables: SUU
agonies, bankruptcy, batteries, canopy, fallacies, fantasies, flatteries, frantically, galleries, magazines, Majesties, Majesty's, maladies, salaries, sanity, strategies, tapestries, tragedies, vanity
4 Syllables: USUU
academies, analogies, calamities, calamity, capacities, catastrophes, formalities, insanity, philanthropy, profanity, realities
5 Syllables: UUSUU
abnormalities, generalities, inhumanity, technicalities, understandably

Found 37 words across 4 groupings.