the kind of possession or right to possession characteristic of estates of freehold
Also: seisin
Word origin
[1250–1300; ME ‹ OF saisine, equiv. to sais(ir) to seize + -ine-ine2]This word is first recorded in the period 1250–1300. Other words that entered Englishat around the same time include: clear, face, lift, number, quarter