Si Constet De Persona
Defined in 3 dictionaries — Cyclopedic (1922), Ballentine's (1916), Black's (1910)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
If It be certain who is the person meant. SI CONTINGAT (Lat. if it happen). Words of condition in old conveyances. 10 Coke, 42a.
Ballentine's Law Dictionary
James A. Ballentine · 1916
If it appears certain as to the person.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat If It be certain who is the person meant.