the deceased; the departed
A somewhat literary or formal term for someone who has passed away. Often used in obituaries, memorials, or respectful references.
We will carry on the will of the deceased and complete this project.
He never misses visiting the grave every year in memory of the departed.
Compound of 亡き (archaic adnominal form of 亡し, meaning 'dead') and 人 (person). The exact historical derivation is uncertain, but the form is conventionally associated with respectful reference to the dead.