terminus
noun
[ ˈtəːmɪnəs ]
• the end of a railway or other transport route, or a station at such a point; a terminal.
• a final point in space or time; an end or extremity.
• "the exhibition's terminus is 1962"
• a figure of a human bust or an animal ending in a square pillar from which it appears to spring, originally used as a boundary marker in ancient Rome.
Origin:
mid 16th century (in the sense ‘final point in space or time’): from Latin, ‘end, limit, boundary’.