Definitions for hatchmentˈhætʃ mənt
Random House Webster's College Dictionary
a square tablet bearing the coat of arms of a deceased person.
Origin of hatchment:
1540–50; var. of achievement
An escutcheon of a deceased person, placed within a black lozenge and hung on a wall
a sort of panel, upon which the arms of a deceased person are temporarily displayed, -- usually on the walls of his dwelling. It is lozenge-shaped or square, but is hung cornerwise. It is used in England as a means of giving public notification of the death of the deceased, his or her rank, whether married, widower, widow, etc. Called also achievement
a sword or other mark of the profession of arms; in general, a mark of dignity