miserere

noun

1. 1.A prayer for mercy.
2. 2.An expression of lamentation or complaint.
3. 3.A medieval dagger, used for the mercy stroke to a wounded foe; misericord.
4. 4.A small projecting boss or bracket on the underside of the hinged seat of a church stall, intended to give some support to a standing worshipper when the seat is turned up; a misericord.
5. 5.Ileus.