English
hydrogymnastics
From hydro- + gymnastics.
Formed from hydro- + gymnastics
Proto-Indo-European *wed- ‘water’
Proto-Indo-European *wódr̥ ‘water’
Proto-Hellenic *údōr ‘water’
Ancient Greek ῡ̆̔́δωρ ‘water’
English hydro-
Proto-Indo-European *negʷ- ‘bare, naked’
Ancient Greek γῠμνᾰ́ζω ‘to train, exercise’
Ancient Greek γυμναστής ‘athlete, gymnast’
Ancient Greek γυμναστικός ‘fond of and/or skilled in athletic exercises’
Latin gymnasticus ‘gymnastic’
English gymnastics
Today it means
noun therapeutic gymnastics performed in water
Language periods are conventional ranges, not dates for this word.
Etymograph / hydrogymnastics