Apertus
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
Apertum.
Lat. [from aperire, to open.] Open or patent. Applied by Bracton to writs, though patens was the more usual epithet. Si fuerit \breve'\ patens sive apertum; quia originalium [brevi- «m] quo Boam aperta, quoedam clausa; if the writ be patent or open; because of original writs some are open, some close. Bract, fol.
418 b.