Seisins is an old legal word that means the possession of land or property.
Seisins is a serious word used in law and property matters.
Examples:
He has the seisins of the land.
The family has had the seisins for many years.
The king gave him the seisins of the castle.
The lawyer talked about seisins in the court.
She fought for the seisins of the house.
The seisins of the farm were very important to him.