Where does “sub” come from?
sub (Middle Irish) comes from Old Irish suib, from Proto-Celtic subi, from Portuguese subir, from Old Portuguese subir, from Latin subire, from Latin subeo, from Latin eō, from Proto-Italic eō — to go.
Ancestry of “sub”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | suib | strawberry |
| 2 | Proto-Celtic | subi | strawberry |
| 3 | Portuguese | subir | to ascend, to go up; to climb; to upload |
| 4 | Old Portuguese | subir | — |
| 5 | Latin | subire | present active infinitive of subeō |
| 6 | Latin | subeo | I go under, come under; enter; I go up to,... |
| 7 | Latin | eō | — |
| 8 | Proto-Italic | eō | I go |
| 9 | Proto-Italic | ejō | — |
| 10 | Proto-Indo-European | h₁éyti | to go, to be going |
| 11 | Proto-Indo-European | h₁ey- | to go |