Ubasute
Ubasute (姥捨て, "abandoning an old woman"; also called obasute and sometimes oyasute 親捨て "abandoning a parent") is a mythical practice of senicide in Japan, whereby an infirm or elderly relative was carried to a mountain, or some other remote, desolate place, and left there to die. Kunio Yanagita concluded that the ubasute folklore comes from India's Buddhist mythology.