Hatchment
Webster's Dictionary [1]
(1): ( n.) 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.
(2): ( n.) A sword or other mark of the profession of arms; in general, a mark of dignity.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
a word corrupted from achievement, and signifying, in heraldry, the armorial bearings of any person fully emblazoned with shield, crest, supporters, etc. The word is used in England for the escutcheon hung up over a door after a funeral, and often in the church. Heraldry is thus supposed to have been formerly connected with religion. The coat was said to be assumed with religious feeling, and at length restored to the sanctuary, in token of thankful acknowledgment to Almighty God. — Farrar, Eccles. Dictionary, s.v.
