What's the word for this?

In a cash account, when you place an order to buy a security, the money required to fill the order is "locked".

Suppose you have $10,000 in your account. If you place a buy order of 100 shares of a stock at $20,
you still have $10,000, but $2,000 is locked and only $8,000 is available.

What's the $2,000 called in this context? Deposits?

Thanks.

 

Encumbered. Encumbered funds specifically.

 

Thanks! When you cancel an entry order, can we say that the money is unencumbered?