Where does “jazzercise” come from?

jazzercise (English) comes from English exercise, from Middle English exercise, from Old French exercise, from Latin exercitium, from Latin exerceo, from Latin arceo, from Proto-Italic arkeō, from Proto-Indo-European h₂erk- — to protect, guard, hold, lock.

jazzercise (English): A form of aerobic exercise based on jazz dance;...

Definitions

  1. A form of aerobic exercise based on jazz dance;...

Ancestry of “jazzercise”, step by step

jazzercise traces back through two separate lines of ancestry.

via English exercise

StepLanguageWordMeaning
1EnglishexerciseAny activity designed to develop or hone a skill...
2Middle Englishexercise
3Old Frenchexercise
4Latinexercitiumexercise, practice
5LatinexerceoI keep busy, keep at work, drive on; occupy,...
6LatinarceoI shut up, enclose; box in; I keep off, ward off;...
7Proto-Italicarkeōto contain
8Proto-Indo-Europeanh₂erk-to protect, guard, hold, lock

via English Jazz

StepLanguageWordMeaning
1EnglishJazzA musical art form rooted in West African cultural and musical expression and in the African American blues tradition, with diverse influences over time, commonly characterized by blue notes, syncopation, swing, call and response, polyrhythms and improvisation
2EnglishJazor any of its variant spellings
Every word from Proto-Indo-European h₂erk-