What is Pall ?
Pall is (noun) 1. a pall of smoke a thick layer of smoke (formal.) A pall of smoke hung over the burning building. 2. a cloth put over a coffin to cast a pall over something to make something seem gloomy The illness of the bride’s father cast a pall over the wedding. (verb) to become less interesting Her bright chatter began to pall after a while.
source: Easier English, Student Dictionary Upper Intermediate Level