The story
- Proto-Indo-European*sekʷ-
- Proto-Indo-European*sokʷéh₂
- Proto-Indo-European*sokʷh₂ṓy
- Proto-Indo-European*sokʷyós
- Proto-Italic*sokjos
- Latinsokios
- Latinsocius
- Englishsocio-
- Proto-Indo-European*dn̥ǵʰwéh₂s
- Proto-Italic*dn̥ɣwā
- Latindingua
- Latinlingua
- Englishlinguist
- Englishlinguistics
- English todaysociolinguistics
From socio- + linguistics.
Etymology from Wiktionary, CC BY-SA 4.0.