olemus
Wiktionary:
1. either of the two points at the ends of a line segment
6. (mathematics) either of the two nodes of a graph of degree 1

piltlikult
https://virtualnerd.com/middle-math/geometric-figures/basics/line-segment-end-points-definition

vt ka
- lõpp-punkt (1)
- lõpp-punkt (2)
- lõppseade
- otspunktkrüpteerimine
- VPN otspunkt