Perhaps a better way to explain "delegation" would be to say that it means "borrowing a method from some other object then executing it in the context of the borrower.

In O-O the "context" in particular refers to the "message recipient" available as the value of the pseudo-variable 'this' (or 'self' in Smalltalk).

To delegate = To borrow a method. Delegator = Borrower. Delegate = Lender.