deplete

verb (used with object), de·plet·ed, de·plet·ing.

1. to decrease seriously or exhaust the abundance or supply of: The fire had depleted the game in the forest. Extravagant spending soon depleted his funds.

verb (tr)

1. to use up (supplies, money, energy, etc); reduce or exhaust
2. to empty entirely or partially
3. med to empty or reduce the fluid contents of (an organ or vessel)

v.

1. To use up something, such as a nutrient.
2. To empty something out, as the body of electrolytes.