Merriam-Webster's Collegiate® Dictionary, 11th Edition
PALL
I. verb see: appall
Date: 14th century
intransitive verb to lose strength or effectiveness, to lose in interest or attraction , dwindle , transitive verb to cause to become insipid, to deprive of pleasure in something by satiating, see: satiate
II. noun
Etymology: Middle English, cloak, mantle, from Old English pæll, from Latin pallium
Date: 14th century
pallium 1a,
2. a square of linen usually stiffened with cardboard that is used to cover the chalice, b. a heavy cloth draped over a coffin, a coffin especially when holding a body,
3. something that covers or conceals, a feeling of gloom ,
III. transitive verb
Date: 15th century
to cover with a pall ; drape