posuditi

1. Croat. (to someone + acc.) to lend
   Možeš li da mi posudiš olovku? — Can you lend me a pen?
   Posudio sam bratu auto za vikend. — I lent my brother the car for the weekend.
2. Croat. (from someone) to borrow
   Posudila sam knjigu od drugarice. — I borrowed a book from a friend.

In Serbia: pozajmiti (in both senses); posuditi is the Croatian word.