English
hydroskeleton
From hydro- + skeleton.
Proto-Indo-European *wed- ‘water’
Proto-Indo-European *wódr̥ ‘water’
Proto-Hellenic *údōr ‘water’
Ancient Greek ῡ̆̔́δωρ ‘water’
English hydro-
Proto-Indo-European *(s)kelh₁- ‘to parch, wither’
…
Ancient Greek σκέλλω ‘dry, dry up, make dry, parch’
Ancient Greek σκελετός ‘dried up, withered, dried body, parched, mummy’
Ancient Greek σκελετόν
New Latin sceleton
English skeleton
Today it means
noun A hydrostatic skeleton; a structure found in many cold-blooded organisms and soft-bodied animals, consisting of a fluid-filled cavity, the coelom, surrounded by muscles, and used in movement and changing shape.
Language periods are conventional ranges, not dates for this word.
Etymograph / hydroskeleton