Nagging, in interpersonal communication, is repetitious behaviour in the form of pestering, hectoring, harassing, or otherwise continuously urging an individual to complete previously discussed requests or act on advice. The word is derived from the Scandinavian nagga, which means "to gnaw". Nagging is a very common form of persuasion used in all aspects of life including domestic and professional. It is also a common practice in order to avoid more aggressive persuasive moves like threats.