köken: From Northern Old French berfroi (“movable siege tower”), from Middle High German bercfrit (“protecting shelter”, literally “that which watches over peace”), from bergen (“to protect”) + frid (“peace”).
köken: Borrowed from French tour, from Latin turris (“tower; rook”) (whence also English tower, English turret). Doublet of туре́ль (turélʹ). Compare also Ukrainian тура (tura).