A more thorough explanation:

PRAEFINE

Praefine (pronounced pree-fine) is a fee that was paid to the Crown in the past when someone wanted to start a conveyance by fine. It was also known as primer fine.

Example 1: John wanted to sell his land to Mary. He had to pay a praefine to the Crown before he could start the conveyance by fine.

Example 2: The lawyer explained to his client that a primer fine or praefine had to be paid before the conveyance by fine could begin.

These examples illustrate how praefine was a fee that had to be paid to the Crown before a conveyance by fine could begin. It was a way for the Crown to make money from land transactions.