v. Simple past tense and past participle of borrow.
The Century Dictionary and Cyclopedia
In organ-building, said of pipes or a stop. See borrow, v. t., 5 .
Word Usage
"Most borrowed author James Patterson photographed by Rankin for RandomHouse writes today, Catherine Cookson, for years the most borrowed writer, has been comprehensively overshadowed by the giants of American popular fiction."