pall1

noun

• 1a cloth spread over a coffin, hearse, or tomb.

• 2a dark cloud of smoke, dust, etc.:a pall of black smoke hung over the quarry
• something regarded as enveloping a situation with an air of gloom or fear:torture and murder have cast a pall of terror over the villages

• 3an ecclesiastical pallium.
• Heraldry a Y-shaped charge representing the front of an ecclesiastical pallium.