obtest

verb2

1. •
   (no longer used) To implore, beseech, plead, beg.
2. •
   (no longer used) To call on a witness (often God) to confirm that something is true.

   • Now Suppliants, from Laurentum sent, demand A Truce, with Olive Branches in their hand. Obtest his Clemency, and from the Plain Beg leave to draw the Bodies of their slain. — 1697