Final answer:
Zerkow, the character in question, gives Maria whiskey to drink. This is part of a broader range of drink references in the provided text excerpts, which illustrate social situations and thematic significance.
Step-by-step explanation:
Zerkow, the character referred to as 'her grandfather, Zeide', seems to encourage Maria to drink whiskey, as illustrated in the given excerpt where both characters share a drink, with Maria using a broken tumbler.
In a broader context, based on the provided excerpts, various characters are associated with different kinds of drinks, such as lemonade, poison, and bubble-water, which in one case refers to champagne.
The references to drinking across these passages highlight different thematic elements, from social interaction to deeper symbolic meanings.