self-renewal

noun

1. the act of renewing.
2. the state of being renewed.
3. an instance of this.

noun

1. the act of renewing or state of being renewed
2. something that is renewed

n.1680s, from renew + -al (2). Specific meaning “urban redevelopment” is from 1965, American English. Earlier noun was simply renew (early 15c.).