"to take a glass of brantwijn and console each other"
Brandy glass
Public DomainBrandy glass - Credit: ChickenFalls

This is the word used in Lyra's world for brandy.

Brandy is short for "brandywine", which comes from the Middle Dutch "brantwijn" meaning distilled wine.

Could this be a nod to that other great Oxford fantasy author, J.R.R. Tolkien, whose Middle-earth included a "Brandywine" river?