Where does “*cisque-unus” come from?

*cisque-unus (Vulgar Latin) comes from Latin quisque, from Latin quis, from Proto-Italic kʷis, from Proto-Indo-European *kʷís.

Ancestry of “*cisque-unus”, step by step

StepLanguageWordMeaning
1Latinquisqueeach one, each person; anyone
2Latinquiswho, what; how, why; someone, something, anyone,...
3Proto-Italickʷiswho, what
4Proto-Indo-European*kʷís—
Every word from Proto-Indo-European *kʷís →Every word from Proto-Italic kʷis →Every word from Latin quis →