DEPLETE

[verb] [T] - to reduce (esp. supplies, energy, money) in size or amountThese chemicals are thought to deplete the ozone layer.If we continue to deplete the Earth's natural resources, we will cause serious damage to the environment.The country's coal reserves/supplies were rapidly depleted when the miners were on strike.(humorous) That last holiday has seriously depleted my bank account!The illness depletes the body of vitamins.