既得権 (kitokuken) Japanese meaning: vested rights | KotomoraLaws that infringe upon vested rights were ruled unconstitutional.
Usage patterns
既得権を守るto protect vested rights
The labor union kept negotiating to protect its vested rights.
既得権にしがみつくto cling to one's vested rights
Some lawmakers clung to their vested rights and opposed the reform.
既得権を侵害するto infringe on vested rights
The new regulation was criticized for infringing on vested rights.
既得権を放棄するto relinquish one's vested rights
After negotiations, the company agreed to relinquish some of its vested rights.