Jealousy

Jealousy typically refers to the thoughts, feelings, and behaviors that occur when a person believes a valued relationship is being threatened by a rival. The word jealousy stems from the French jalousie, formed from jaloux (jealous), and further from Low Latin zelosus (full of zeal), and from the Greek word for “ardour, zeal” (with a root connoting “to boil, ferment”; or “yeast”).