Entertaiment is a word that has a broad definition. It is the process of being entertained, which can include activities such as watching a play or a movie, going to a restaurant for dinner, or even reading an interesting article. The word is derived from the Latin intertenere, meaning “to hold inside,” which in turn comes from the Indo-European root ten, meaning to stretch.
Entertainment can be very fun, but it can also have a more serious purpose, such as ceremonies, religious festivals, or satire. Entertainment often hits on themes that the human brain was evolved to deeply react to, such as social backstabbing or murders.