Strong's #3648: kamar (pronounced kaw-mar')
 a primitive root; properly, to intertwine or contract, i.e. (by implication) to shrivel (as with heat); figuratively, to be deeply affected with passion (love or pity):--be black, be kindled, yearn.
Brown-Driver-Briggs Hebrew Lexicon:
 ּ 
  kâmar 
 
 1) to yearn, be kindled, be black (hot), grow warm and tender, be or grow hot, become hot, become emotionally agitated
 
 1a) (Niphal)
 
 1a1) to grow warm and tender
 1a2) to be or grow hot
 
  Part of Speech: verb
Relation: a primitive root
  Same Word by TWOT Number:  993, 994, 995
Usage:
This word is used 4 times:
Genesis 43:30: "made haste; for his bowels  did yearn upon his brother: and he sought where to weep;"
1 Kings 3:26: "the king, for her bowels  yearned upon her son, and she said, O"
Lamentations 5:10: "Our skin  was black like an oven because of famine."
Hosea 11:8: "is turned within me, my repentings  are kindled together."