To drink; to give s.o. a drink.
[The pa--an/-an suffix can be used interchangeably and are used when giving s.o. a drink out of the same glass, bottle, etc., or when asking someone to share some of their drink.]
Thank you for giving me s.t. to drink.
If you don't have anymore money, just give me a drink of your coke.
Give my cow s.t. to drink.
Give me some water to drink.