altiscope

The story

1. Proto-Indo-European*h₂el-
2. Proto-Indo-European*h₂eltós
3. Proto-Italic*altos
4. Latinaltus
5. Proto-Indo-European*speḱ-
6. Proto-Indo-European*spéḱyeti
7. Proto-Hellenic*sképt͏̌omai
8. Ancient Greekσκέπτομαι (sképtomai)
9. Ancient Greekσκοπός (skopós)
10. Ancient Greekσκοπέω (skopéō)
11. English todayaltiscope

From Latin altus (“high”) + English -scope.