backfill

verb

1. 1.

   To refill an excavated hole with the material dug out of it or with other material.

2. 2.

   (business) To hire someone to fill a position vacated by an employee who has left or been promoted.

3. 3.

   (computing) To add missing data retroactively to a database or system.

4. 4.

   (noun) Material used to refill an excavation.