The word 'covet' means to have an intense desire or craving for something, especially something that belongs to someone else. It implies wanting something so much that it can lead to feelings of envy or jealousy. For example, if a person covets their neighbor's new car, it means they wish they had that car and may feel dissatisfied with their own possessions.
The word 'covet' comes from the Old French "coveitier," which means "to desire." This, in turn, is derived from the Latin "cupiditas," meaning "desire, longing." The root "cupid" relates to longing or desire, which is still relevant in the modern usage of the word.