Jazz originally spelled "jass" was a euphemism. "Rock and roll" also as in my baby rocks me all night long. Bebop and swing refer to musical styles emphasizing in the former, highly sophisticated lines of music based on complex harmonies and swing as an element of incorporating triplet based emphasis on interpreting eighth notes. It is also a component of 12/8 time found in African music.

Jass music originated in the whore houses in New Orleans where the term jass was
part of the vocabulary.