Where does “quī” come from?

quī (Latin) comes from Old Latin quei, from Proto-Italic kʷoi, from Proto-Indo-European kʷós — who.

quī (Latin): who, that, which, what

Definitions

  1. who, that, which, what

Ancestry of “quī”, step by step

quī traces back through 3 separate lines of ancestry.

via Old Latin quei

StepLanguageWordMeaning
1Old Latinqueiwho, what, that, which
2Proto-Italickʷoiwho, what
3Proto-Indo-Europeankʷóswho

via Proto-Indo-European kʷeh₂

StepLanguageWordMeaning
1Proto-Indo-Europeankʷeh₂—

via Latin quei

StepLanguageWordMeaning
1Latinqueiwho, what, that, which

Words derived from “quī”

Every word from Proto-Indo-European kʷós →Every word from Proto-Italic kʷoi →Every word from Old Latin quei →