What is "soc and sac"

Soc \Soc\ (s[o^]k), n. [AS. s[=o]c the power of holding court, sway, domain, properly, the right of investigating or seeking; akin to E. sake, seek. Sake, Seek, and cf. Sac, and Soke.] [Written also sock, and soke.]

1. (O. Eng. Law)

   1. The lord's power or privilege of holding a court in a district, as in manor or lordship; jurisdiction of causes, and the limits of that jurisdiction.

   2. Liberty or privilege of tenants excused from customary burdens.

2. An exclusive privilege formerly claimed by millers of grinding all the corn used within the manor or township which the mill stands. [Eng.]

   Soc and sac (O. Eng. Law), the full right of administering justice in a manor or lordship.

n. (context UK legal historical English) The full right of administering justice in a manor or lordship.