taandareng(tagasiminek arengu eelmisse astmesse, arengus juba tekkinu kadumine); involutsioon(tagasiminek arengu eelmisse astmesse, arengus juba tekkinu kadumine)
devolution The act of assigning or entrusting authority, powers or functions to another as deputy or agent, typically to a subordinate in the administrative structure of an organization or institution['di:və'lu:ʃ(ə)n]n