The immediate obtainment of goods or services in exchange for future payment.
Explanation:
The term "credit" is used for the attainment of any goods or services immediately in exchange for future payment. This means that the services or goods will be acquired at the same moment but the payment will be done later on in the future.
This means that anything taken in advance without the payment done yet is termed as credit. So, the phrase that defines 'credit' best is the limited obtainment of any goods and services in exchange for payment to be done in the future.
There were several advantages that the Germanic Tribes have in their conflicts with the Roman Empire during the 3rd to 5th centuries. since you provide no options, one of the advantage that they have is that they know the terrain better and are really used to it