G4640 σκιρτάω (skirtáō)

KJV renderings: leap (for joy)
Strong's definition: to jump, i.e. sympathetically move (as the quickening of a fetus)
Derivation: akin to (to skip);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.