Where does “fasti” come from?
fasti (Esperanto) comes from Yiddish פֿאַסטן, from Middle High German vasten, from Old High German fastēn, from Proto-West Germanic *fastēn, from Proto-Germanic fastāną, from Proto-Germanic -āną, from Proto-Germanic -ajaną, from Proto-Indo-European -oyéti — he, she.
Ancestry of “fasti”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Yiddish | פֿאַסטן | fast |
| 2 | Middle High German | vasten | — |
| 3 | Old High German | fastēn | — |
| 4 | Proto-West Germanic | *fastēn | — |
| 5 | Proto-Germanic | fastāną | to observe, hold firm to; to fast, to abstain... |
| 6 | Proto-Germanic | -āną | Creates factitive verbs from adjectives, later... |
| 7 | Proto-Germanic | -ajaną | — |
| 8 | Proto-Indo-European | -oyéti | Creates factitive verbs from adjectives |
| 9 | Proto-Indo-European | -yéti | Creates intransitive, often deponent,... |
| 10 | Proto-Indo-European | yé- | — |
| 11 | Chichewa | iye | he, she |