give back

verb

1. To return, restore (a thing to its original owner or location etc.).

   “Give me back my book!”

2. To contribute money, goods, or, especially, services for charitable purposes, as if in return for one's own success.

   “We organize this Thanksgiving dinner at the old-age home to give back to the community.”

3. To recede; to retreat.

   “Yet the Fiends ſeemed to come nearer and nearer, but when they were come even almoſt at him, he cried out with a moſt vehement voice, I will walk in the ſtrength of the Lord God; ſo they gave back, and came no farther.”