tie-back

A full length (either to the windowsill or to the floor) curtain or drapery looped back at the side of the window with a band of trimming or self-fabric. The curtain or drapery is closed at the top of the window, and almost entirely open at the point of the tie-back. The look is popular in informal houses in such fabrics as organdy and batiste and in formal houses in luxurious fabrics.