A more thorough explanation:

praematura diligentia (pree-mə-t(y)uur-ə [or -chuur-ə] dil-ə-jen-shee-ə). [Law Latin] Scots law. Premature execution of a judgment.

Praematura diligentia is a legal term used in Scots law to describe the premature execution of a judgment. This means that a judgment is carried out before it is supposed to be, which can cause problems if the judgment is later overturned or changed.

An example of praematura diligentia would be if a court ordered someone to pay a fine, but the fine was collected before the person had a chance to appeal the decision. If the person's appeal was successful and the judgment was changed, they would have already paid the fine and would not be able to get their money back.

Another example would be if a court ordered someone to be evicted from their home, but the eviction was carried out before the person had a chance to find a new place to live. This could cause the person to become homeless, even if the judgment was later overturned.