In this drama TRELAWNEY says to LIVESEY: "What were you hoping to put up to secure the loan? What do you own with a guaranteed worth of five thousand pound? " I can't understand the meaning of "What do you own with a guaranteed worth of five thousand pound? " If anyone knows,please help me. Thanks.
When you take out a loan, you offer something of equal value, called a Security. These days it's something like your house or your car.
If you fail to pay back the loan (and the interest) by the agreed time, the lender takes that security from you, as payment instead.
In this case, Livesey wants to borrow £1,000 and expects to pay back £5,000 (ie, with £4,000 interest) to Trelawney. Trelawney wants some kind of guarantee that, in case Livesey cannot pay the £5k, he will still get that same value in some way.