attrition

noun
1
a process of making somebody/something, especially your enemy, weaker by repeatedly attacking them or creating problems for them
فرسایش, تضعیف, نابودی تدریجی
2
the process of reducing the number of people who are employed by an organization by, for example, not replacing people who leave their jobs
کاهش نیرو, کم شدن نیروها, تعدیل نیروی انسانی, حذف تدریجی کارکنان