end-around borrow
A computing term for a borrow operation in subtraction that wraps around from the most significant digit to the least significant digit, used in certain digital arithmetic circuits.
End-around borrow is used in subtraction circuits when an overflow occurs.
Compound of 循環 (circulation, cycle) and 借り (borrowing), literally 'circular borrowing'. The term is a direct calque of the English computing term 'end-around borrow'.