Where does “perpetuel” come from?

perpetuel (Old French) comes from Latin perpetualis, from Latin perpetuus, from Latin -uus, from Proto-Italic *-wos, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “perpetuel”, step by step

StepLanguageWordMeaning
1Latinperpetualisthat holds everywhere, universal, general
2Latinperpetuusperpetual, continuous, uninterrupted, constant,...
3Latin-uusforms adjectives on verbal stems
4Proto-Italic*-wos
5Proto-Indo-European-wósCreates adjectives from verb stems

Words derived from “perpetuel

Every word from Proto-Indo-European -wósEvery word from Latin -uusEvery word from Latin perpetuus