Friborg
Friborg , noun
[Anglo-Saxon frieborh, lit., peace pledge; frie peace + borh, borg, pledge, akin to English borrow. The first part of the word was confused with free, the last part, with borough.]
(Old Eng. Law) The pledge and tithing, afterwards called by the Normans frankpledge. See Frankpledge. — Burril
Also: Friborgh