A beer mug, usually made of ceramic or glass.
From a regional use of German Stein (“stone”). Probably a clipping of Steingut (“stoneware”) or Steinkrug (“stone pitcher”). Compare Old English stǣna (“stone jug, a pot of stone or earth”). Doublet of stone. More at stean.
Oefen met het spreken en memoriseren van " stein " en vele andere woorden en zinnen in Engels .