Being positioned toward the end; pertaining to the end or rear.
1920, United States. Patent Office, Official Gazette of the United States Patent Office:
[...] having a top section slidable upon the upper edge of the fire pot and a vertical section movable into contact with the converging side walls of the fire pot at either end on endward movement of the top section.
1960, Titus Evans, Radiation Research Society, Radiation research:
The deviation of ID for both the sideward and endward cases is qualitatively like that of a slim pencil-shaped [...]