The term ONE END OF A NARTHEX can be solved by the crossword solution NAVE, which is a four-letter word. The NAVE is the central part of a church, typically extending from the entrance to the chancel. It is usually flanked by aisles and separated from the sanctuary by an arcade. The narthex is the entrance area of a church, located at the western end of the NAVE. Therefore, ONE END OF A NARTHEX refers to the entrance area of a church.