Where does “vasten” come from?

vasten (Middle High German) comes 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, from Proto-Indo-European -yéti, from Proto-Indo-European yé- — he, she.

Ancestry of “vasten”, step by step

StepLanguageWordMeaning
1Old High Germanfastēnto fast
2Proto-West Germanic*fastēnto fast, to abstain from food and/or drink
3Proto-Germanicfastānąto observe, hold firm to; to fast, to abstain...
4Proto-Germanic-ānąCreates factitive verbs from adjectives, later...
5Proto-Germanic-ajaną
6Proto-Indo-European-oyétiCreates factitive verbs from adjectives
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

Words derived from “vasten

Every word from Chichewa iyeEvery word from Proto-Indo-European -yétiEvery word from Proto-Germanic -āną