Andean technique of having the same warp yarns controlled by two different shedding devices (or leases), instead of the usual one. It is used particularly for weaving complementary warps.

Excerpt from

Ann Rowe, “Glossary,” in Weaving and Dyeing in Highland Ecuador, edited by Ann Rowe, Laura Miller and Lynn Meisch (Austin: University of Texas Press, 2007): 289-295.