A more thorough explanation:

KOOP

koop (kə-wəp), n. [Dutch]

Dutch law. Purchase; bargain.

Koop is a Dutch word that means "purchase" or "bargain" in English. It is used in Dutch law to refer to a transaction where one party buys something from another party.

1. "The koop of the house was completed last week."

2. "The koop of the car was a good deal for both parties."

These examples illustrate the use of the term koop in the context of a purchase or bargain. In the first example, the koop refers to the purchase of a house, while in the second example, it refers to the purchase of a car. Both examples show how the term is used in Dutch law to describe a transaction where one party buys something from another party.