replenish
verb [ I or T ]
formal uk/rɪˈplenɪʃ/ usto return, or make something return, to an earlier level or size:
Industrial fishing methods don't give fish stocks a chance to replenish.
Some firms are planning ahead to replenish retiring work forces.
Increases in taxes will help replenish the fund.
replenishment
noun [ U ]
The warehouse operation deals with the replenishment of stock.