Where does “autoimune” come from?
autoimune (Portuguese) comes from Portuguese imune, from Latin immūnis, from Latin in- -is, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.
autoimune (Portuguese): autoimmune
Ancestry of “autoimune”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Portuguese | imune | immune |
| 2 | Latin | immūnis | — |
| 3 | Latin | in- -is | — |
| 4 | Latin | īn- | — |
| 5 | Latin | în | — |
| 6 | Latin | en | lookǃ beholdǃ; reallyǃ?; come onǃ |
| 7 | Proto-Italic | en | in |
| 8 | Proto-Indo-European | h₁én | in |