Sewing supports
(Sewing on Supports) The process of linking the quires of a manuscript into book form by sewing them on to cords.
(Sewing on Supports) The process of linking the quires of a manuscript into book form by sewing them on to cords. This is the usual form of medieval binding.
Michelle Brown, Understanding Illuminated Manuscripts (Malibu, CA: J. Paul Getty Museum in association with the British Library, c1994).