astroarchaeology

The story

1. Proto-Indo-European*h₂eHs-
2. Proto-Indo-European*h₂stḗr
3. Proto-Hellenic*astḗr
4. Ancient Greekἀστήρ (astḗr)
5. Ancient Greekᾰ̓́στρον (ắstron)
6. Englishastro-
7. Proto-Indo-European*h₂er-der.?
8. Proto-Indo-European*h₂ergʰ-der.?
9. Ancient Greekἄρχω (árkhō)
10. Ancient Greekἀρχή (arkhḗ)
11. Ancient Greekἀρχαῖος (arkhaîos)
12. Proto-Indo-European*leǵ-
13. Proto-Indo-European*lóǵos
14. Proto-Hellenic*lógos
15. Ancient Greekλόγος (lógos)
16. Ancient Greekἀρχαιολογίᾱ (arkhaiologíā)
17. Englisharchaeology
18. English todayastroarchaeology

From astro- + archaeology.