The story
- Proto-Indo-European*sekʷ-
- Proto-Indo-European*sokʷéh₂
- Proto-Indo-European*sokʷh₂ṓy
- Proto-Indo-European*sokʷyós
- Proto-Italic*sokjos
- Latinsokios
- Latinsocius
- Englishsocio-
- Englishhistorical
- English todaysociohistorical
From socio- + historical.
Etymology from Wiktionary, CC BY-SA 4.0.