Pām'er, n.
(pām'er), n. 1. One who palms or cheats, as at cards or dice.
Sense 2. A wandering religious votary; especially, one who visited the Holy Land and its sacred places, and bore a branch of palm in token thereof; an incessant pilgrim; one who spent all his time in visiting holy shrines.
The difference between a pilgrim and a palmer was this: the pilgrim had some home or dwelling-place, the palmer had none. The pilgrim traveled to some certain, designed place or places, but the palmer to all. Stacey.