Strong's #5539: calad (pronounced saw-lad')
a primitive root; probably to leap (with joy), i.e. exult:--harden self.
Brown-Driver-Briggs Hebrew Lexicon:
sâlad
1) (Piel) to leap, jump, spring, leap for joy
Part of Speech: verb
Relation: a primitive root
Usage:
This word is used 1 times:
Job 6:10: "Then should I yet have comfort; yea, I would harden myself in sorrow: let him not spare; for"