Where does “kay” come from?
kay (Old French) comes from Gaulish kagyum, from Proto-Celtic kagyom, from Proto-Indo-European kagʰyóm, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.
Ancestry of “kay”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Gaulish | kagyum | — |
| 2 | Proto-Celtic | kagyom | pen, enclosure |
| 3 | Proto-Indo-European | kagʰyóm | enclosure, hedge |
| 4 | Proto-Indo-European | -yós | Creates adjectives from noun or verb stems |