from the GNU version of the Collaborative International Dictionary of English
- n. wine made of the spring sap of the birch.
- n. See under Birch, Cape, etc.
from The Century Dictionary and Cyclopedia
- n. A fermented liquor made from the sap of the birch-tree, which is collected in the spring throughout the mountainous and wooded districts of Germany and Scandinavia.
Sorry, no etymologies found.