Where does “is” come from?
is (Old Irish) comes from Proto-Celtic ɸīssu, from Proto-Indo-European pedsú, from Proto-Indo-European pṓds, from Proto-Indo-European póds, from Proto-Indo-European ped- — to walk, to step; to stumble, to fall.
is (Old Irish): under, below, beneath
Ancestry of “is”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Celtic | ɸīssu | under |
| 2 | Proto-Indo-European | pedsú | — |
| 3 | Proto-Indo-European | pṓds | foot |
| 4 | Proto-Indo-European | póds | — |
| 5 | Proto-Indo-European | ped- | to walk, to step; to stumble, to fall |