Ubasute 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.
Ättestupa
…force them to do anything they do not want to, negotiates with them to instead stay away from Norheim so the rest do not find out they refused to jump. Ubasute Euthanasia…
Ubasute no tsuki (The Moon of Ubasute), one of the 100 works in the series One Hundred Aspects of the Moon, by Tsukioka Yoshitoshi