the.com/borrower

means Someone who takes something — usually money or an object — that isn't theirs, on the understanding (or hope) that it goes back eventually.

from From Old English 'borgian,' tied to 'borg' meaning a pledge or security — the old idea being that a borrower put something up as surety, a promise of return. It's related to the root behind 'borough' and 'bury,' which carry the sense of protection or safekeeping — borrowing, at bottom, was always about trust held in trust.