Where does “derken” come from?

derken (Middle English) comes from Old English deorcian, from Proto-West Germanic derkōn, from Proto-West Germanic -ōn, from Proto-Germanic -ōną, from Proto-Indo-European -eh₂yéti, from Proto-Indo-European -yéti, from Proto-Indo-European yé-, from Chichewa iye — he, she.

Ancestry of “derken”, step by step

StepLanguageWordMeaning
1Old Englishdeorcianto darken, grow dark
2Proto-West Germanicderkōnto darken, become dark, grow dim
3Proto-West Germanic-ōnCreates denominative verbs from nouns; Creates...
4Proto-Germanic-ōnąCreates denominative verbs from nouns; Creates...
5Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
6Proto-Indo-European-yétiCreates intransitive, often deponent,...
7Proto-Indo-Europeanyé-
8Chichewaiyehe, she
Every word from Chichewa iyeEvery word from Proto-Indo-European -yétiEvery word from Proto-Germanic -ōną