callisthenics
noun /ˌkælɪsˈθenɪks/
/ˌkælɪsˈθenɪks/
(British English) (North American English calisthenics)
[uncountable + singular or plural verb]- physical exercises intended to develop a strong and attractive bodyWord Originearly 19th cent.: from Greek kallos ‘beauty’ + sthenos ‘strength’ + -ics.