To buy out
|To buy off, or detach from.|
|To purchase the share or shares of in a stock, fund, or partnership, by which the seller is separated from the company, and the purchaser takes his place; as, A buys out B.|
|To purchase the entire stock in trade and the good will of a business.|
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.