The story
- Proto-Indo-European*weyḱ-
- Proto-Indo-European*wóyḱos
- Proto-Hellenic*wóikos
- Ancient Greekϝοῖκος (woîkos)
- Ancient Greekοἶκος (oîkos)
- Latinoeco-
- Frenchéco-
- Englisheco-
- Englishpsychology
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishpsychological
- English todayecopsychological
From eco- + psychological.
Etymology from Wiktionary, CC BY-SA 4.0.