dever

1. brother-in-law
   Moj dever živi u Nemačkoj sa porodicom. — My husband's brother lives in Germany with his family.
   Za slavu nam dolaze dever i jetrva. — My brother-in-law and his wife are coming to our slava.
2. (at a wedding) the bride's escort
   Dever je doveo mladu do crkve. — The bride's escort brought her to the church.

As a kinship term, it refers only to the husband's brother; the wife's brother is šurak, a sister's husband is zet.