Where does “saviour” come from?

saviour (Middle English) comes from Old French sauveour, from Late Latin salvator, from Latin salvō, from Latin salvus, from Proto-Italic *salawos, from Proto-Indo-European solh₂wós, from Proto-Indo-European sōlh₂- — mercy, comfort; comfort, mercy.

Ancestry of “saviour”, step by step

StepLanguageWordMeaning
1Old Frenchsauveour
2Late Latinsalvatorsaviour; second/third-person singular future...
3Latinsalvōto save (make safe or healthy)
4Latinsalvussafe, saved, preserved, sound, unharmed,...
5Proto-Italic*salawoswhole
6Proto-Indo-Europeansolh₂wós
7Proto-Indo-Europeansōlh₂-mercy, comfort; comfort, mercy

Words derived from “saviour

Every word from Proto-Indo-European sōlh₂-
saviour — Etymology, Origin & Word History | Etymology Explorer