Strong's #7540: raqad (pronounced raw-kad')
 a primitive root; properly, to stamp, i.e. to spring about (wildly or for joy):--dance, jump, leap, skip.
Brown-Driver-Briggs Hebrew Lexicon:
 
  râqad 
 
 1) to skip about
 
 1a) (Qal) to skip about
 1b) (Piel) to dance, leap
 1c) (Hiphil) to make to skip
 
  Part of Speech: verb
Relation: a primitive root
Usage:
This word is used 9 times:
1 Chronicles 15:29: "king David  dancing and playing: and she despised him in her heart."
Job 21:11: "their little ones like a flock, and their children  dance."
Psalms 29:6: " He maketh them also to skip like a calf; Lebanon and Sirion like a young unicorn."
Psalms 114:4: "The mountains  skipped like rams, and the little hills like lambs."
Psalms 114:6: "Ye mountains,  that ye skipped like rams; and ye little hills, like lambs?"
Ecclesiastes 3:4: "a time to mourn, and a time  to dance;"
Isaiah 13:21: "and owls shall dwell there, and satyrs  shall dance there."
Joel 2:5: "on the tops of mountains  shall they leap, like the noise of a flame of fire that devoureth"
Nahum 3:2: "of the wheels, and of the prancing horses,  and of the jumping chariots."