ablassen in English:

Chopin airport must apply noise abatement operational procedures,

the storm suddenly abated

Our ship could not sail until the storm abated.

1. to make or become less in amount, intensity, degree, etc. the storm has abated 2 to diminish in intensity, violence, amount, etc.: The storm has abated. 3 Law. to end; become null and void.

In an hour or so the storm would abate and they could leave.

the violence is not going to abate