Forinsecus
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat Foreign; exterior; outside; extraordinary. Servitium fo-rinsecum, the payment of aid, scutage, and other extraordinary military services. Fo-rinsecum manerium, the manor or that part of it which lies putside the bars or town, and is not included within the liberties of it.
Cowell; Blount; Jacob; 1 Reeve, Eng. Law, 273.