pall 1 
(pôl)
(pôl)n.
1. A cover for a coffin, bier, or tomb, often made of black, purple, or white velvet.
2. A coffin, especially one being carried to a grave or tomb.
3.
a. A covering that darkens or obscures: a pall of smoke over the city.
b. A gloomy effect or atmosphere: "A pall of depressed indifference hung over Petrograd during February and March 1916" (W. Bruce Lincoln).
4. Ecclesiastical
a. A linen cloth or a square of cardboard faced with cloth used to cover the chalice.
b. See pallium.
tr.v. palled, pall·ing, palls
To cover with or as if with a pall.
[Middle English pal, from Old English pæll, cloak, covering, from Latin pallium.]