D defs.my
Entry 2 senses Webster, 1913

Hatchment

/(-ment)/ · Hatch·ment · IPA /ˈhæt͡ʃmənt/
01 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…
  1. 1.
    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.(Her.) Also: achievement
    “His obscure funeral; No trophy, sword, or hatchment o'er his bones.” Shak.
  2. 2.
    A sword or other mark of the profession of arms; in general, a mark of dignity.
    “Let there be deducted, out of our main potation, Five marks in hatchments to adorn this thigh.” Beau. & Fl.