If an idea, system, or organization ossifies or if something ossifies it, it becomes fixed and difficult to change.
例句
It reckons that rationing would ossify the farm industry...人們認為實行配給制會使農業失去活力。British society tended to ossify and close ranks as the 1930s drew to their close.英國社會在20世紀30年代末期趨于保守和自閉。