John Jamieson, An Etymological Dictionary of the Scottish Language
“ Su. G. borgen, suretyship. Ihre derives Su. G. and Isl. borg-a, to become surety, from berg-a, a periculo tueri, to protect from danger. The idea is certainly most natural: For what is suretyship, but warranting the safety of any person or thing?To BORCH, v. a. To give a pledge or security for, to bail. Wallace.To BORROW, BORW, v. a. 1. To give security for; applied to property. Wyntown. 2. To become surety for; applied to a person. Baron Courts.Su. G. borg-a, id.To BORROW one, to urge one to drink, Ang.When one pledges another in company, he engages to drink after him ”
