The story
- Englishstroll
- Englishstroller
- Proto-Indo-European*h₂ews-
- Proto-Indo-European*h₂ewsér
- Proto-Hellenic*auhḗr
- Ancient Greekἀήρ (aḗr)
- Proto-Indo-European*gʷeyh₃-
- Ancient Greekβίος (bíos)
- Frenchaérobie
- Englishaerobic
- Englishaerobics
- English todaystrollerobics
Blend of stroller + aerobics.
Etymology from Wiktionary, CC BY-SA 4.0.