seise

To vest ownership of an estate in land (to someone).

There a baron was created and seised by the king in a single act. His tenure was a function of his personal relationship with his lord king.

To put in possession.

He then died intestate; and I observed that his heir-at-law was not actually seised of Whiteacre, the possession of which became vacant on his ancestor's death

Where the appeal committee is seised, it shall meet at the earliest 14 days, except in duly justified cases, and at the latest 6 weeks, after the date of referral.

To seize.