hydrodynamic

English

Etymology tree

Proto-Indo-European *wed-

Proto-Indo-European *-r̥

Proto-Indo-European *wódr̥

Proto-Hellenic *údōr

Ancient Greek ῡ̆̔́δωρ (hū̆́dōr)

Ancient Greek ῠ̔δρο- (hŭdro-)der.

English hydro-

Proto-Indo-European *dewh₂-der.

Proto-Hellenic *dunamai

Ancient Greek δῠ́νᾰμαι (dŭ́nămai)

Ancient Greek δύναμις (dúnamis)

Ancient Greek -ικός (-ikós)

Ancient Greek δυναμικός (dunamikós)lbor.

French dynamiqueder.

English dynamic

English hydrodynamic

hydrodynamic (not comparable)

(physics) Of, or relating to the science of hydrodynamics.
- 1961 October, David W. Beadle, “Krauss-Maffei 4,000 h.p. diesel-hydraulic unit for the U.S.A. on trial”, in Trains Illustrated, page 619:
  On the descent from Semmering to Payerbach-Reichenau, with a ruling gradient of 1 in 39 [...], the Voith hydrodynamic brake kept the train within the 19 and 23 m.p.h. limitations without recourse to air brakes, [...].
Operated by the force of water in motion.

of or relating to the science of hydrodynamics