renewer

verb (used with object)

1. to begin or take up again, as an acquaintance, a conversation, etc.; resume.
2. to make effective for an additional period: to renew a lease.
3. to restore or replenish: to renew a stock of goods.
4. to make, say, or do again.
5. to revive; reestablish.
6. to recover (youth, strength, etc.).
7. to restore to a former state; make new or as if new again.

verb (used without object)

8. to begin again; recommence.
9. to renew a lease, note, etc.
10. to be restored to a former state; become new or as if new again.

verb (mainly tr)

1. to take up again
2. (also intr) to begin (an activity) again; recommenceto renew an attempt
3. to restate or reaffirm (a promise, etc)
4. (also intr) to make (a lease, licence, or contract) valid or effective for a further period
5. to extend the period of loan of (a library book)
6. to regain or recover (vigour, strength, activity, etc)
7. to restore to a new or fresh condition
8. to replace (an old or worn-out part or piece)
9. to replenish (a supply, etc)

v.

late 14c., from re- “again” + Middle English newen “resume, revive, renew” (see new); formed on analogy of Latin renovare. Related: Renewed; renewing.