Source : Webster's Revised Unabridged Dictionary (1913)

Mazer \Maz"er\, n. [OE. maser, akin to OD. maser an excrescence
   on a maple tree, OHG. masar, G. maser spot, Icel. m["o]surr
   maple.]
   A large drinking bowl; -- originally made of maple. [Obs.]

         Their brimful mazers to the feasting bring. --Drayton.

Source : WordNet®

mazer
     n : a large hardwood drinking bowl