IPA: //dʒoʊˈviːəlɪti//
KK: /dʒoʊˈviːəlɪti/
A cheerful and friendly quality or state of being; a joyful and good-humored disposition.
Her joviality made the party more enjoyable for everyone.
Jovialty → It is formed from "jovial" (from Latin "Iovialis", meaning of Jupiter or cheerful) and the suffix "-ty" (meaning the state or quality of). The word "jovialty" refers to the state of being jovial or cheerful.
Think of 'jovial' which relates to being cheerful, and remember that 'jovialty' means the quality of being cheerful.
No commonly confused words.