seisin
/ˈsiːzɪn/(亦作seizin)
noun
mass noun
1- Law possession of land by freehold【律】依法占有土地。
1.1
- Brit. historical possession, especially of land〈英史〉（尤指土地的）占有; 拥有：
Richard Fitzhugh did not take seisin of his lands until 1480.
理查德·费茨修直到1480年才拥有了自己的土地。
词源
Middle English: from Old French seisine, from saisir 'seize'.