Jealousy generally refers to the thoughts or feelings of insecurity, fear, and concern over a relative lack of possessions or safety. Jealousy can consist of one or more emotions such as anger, resentment, inadequacy, helplessness or disgust. In its original meaning, jealousy is distinct from envy, though the two terms have popularly become synonymous in the English language, with jealousy now also taking on the definition originally used for envy alone. These two emotions are often confused with each other, since they tend to appear in the same situation.
https://en.wikipedia.org/wiki/Jealousy