A short subsidiary rib connecting two main ones. (Martindale, Andrew. Gothic Art, 269)
Short rib that fills spaces between tiercerons. Should be carefully differentiated from the short ribs that result from splitting major ribs such as tiercerons, diagonal ribs and transverse arches. Liernes do not pretend to be structural.
purely decorative extra vaulting ribs joining the structural ribs to form a net-like pattern
in a complex rib vault, liernes connect the keystone to the centre of the sides of the quadrilateral made by the vault. The rib from the origin of the arch to the lierne is called a tierceron. Both ribs are found solely in late Gothic architecture
A short rib that runs from the one main rib of a vault to another.
A Lierne (from the French lier - to bind) in Gothic rib vaulting is an architectural term for a tertiary rib spanning between two other ribs, instead of from a springer, or to the central boss. The type of vault that utilizes liernes is called a lierne vault or stellar vault (named after the star shape generated by connecting liernes).