Where does “fastēn” come from?

fastēn (German) comes 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, from Proto-Indo-European -yéti — he, she.

Ancestry of “fastēn”, step by step

fastēn traces back through two separate lines of ancestry.

via Middle High German vasten

StepLanguageWordMeaning
1Middle High Germanvasten
2Old High Germanfastēnto fast
3Proto-West Germanic*fastēnto fast, to abstain from food and/or drink
4Proto-Germanicfastānąto observe, hold firm to; to fast, to abstain...
5Proto-Germanic-ānąCreates factitive verbs from adjectives, later...
6Proto-Germanic-ajaną
7Proto-Indo-European-oyétiCreates factitive verbs from adjectives
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via German faste

StepLanguageWordMeaning
1Germanfasteinflection of fasten: ## first-person singular...
2Middle High Germanvastefasting; fast
3Old High Germanfastafast

Words derived from “fastēn

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