chancel

Latin cancellus meant a lattice, grating, or little barrier. It is related to cancri, "bars," and later produced cancelli, plural "lattices." The word named a physical screen. It was an ordinary object before it was a church space.

Late Latin cancelli came to mean the railings separating sacred space. By the 4th century, church buildings used screens around the altar. The area beyond the screen acquired the name. The physical barrier became the name of a place.

Old French chancel, from Latin cancellus, entered English after 1066. The word referred to the eastern part of a church where the clergy officiate. It carried architectural specificity. The spelling settled by the 1300s.

In English parish life, chancel also named legal responsibilities such as chancel repair. Documents from the 1500s and 1600s use it in property and ecclesiastical contexts. The word remains a precise architectural term. Its original sense as a screen is still visible.