replenish
v.v. to fill something up again after it has been used or emptied. You use this when you need to get more of something like food, water, or supplies.
v. to restore a stock or supply to a former level or condition. Transitive — requires a direct object, often referring to resources, fluids, or inventory.
I need to replenish my water bottle before the hike.
The hotel staff works quickly to replenish the breakfast buffet as soon as the food runs low.
Ecologists warn that the local aquifer cannot replenish itself at the current rate of extraction, leading to a permanent drop in the water table.
From Middle English replenisshen, borrowed from Old French repleniss-, stem of some of the conjugated forms of replenir, from re- + plenir, from plein, from Latin plenus.
The verb is transitive and often pairs with the preposition 'with' when describing the substance used to refill.