Where does “dirkenen” come from?

dirkenen (Middle English) comes from Old English deorcnian, from Proto-West Germanic dirkinōn, from Proto-West Germanic derk, from Proto-Germanic derkaz, from Proto-Indo-European dʰerg-o-s, from Proto-Indo-European dʰerg-, from Proto-Indo-European dʰer- — to support; to hold.

Ancestry of “dirkenen”, step by step

dirkenen traces back through two separate lines of ancestry.

via Old English deorcnian

StepLanguageWordMeaning
1Old Englishdeorcnian
2Proto-West Germanicdirkinōnto darken, to become dark; to darken, to make...
3Proto-West Germanicderkdirty; dark
4Proto-Germanicderkaz
5Proto-Indo-Europeandʰerg-o-s
6Proto-Indo-Europeandʰerg-to dim, darken; dim, dull; dark, dusky
7Proto-Indo-Europeandʰer-to support; to hold

via Old English diercnian

StepLanguageWordMeaning
1Old Englishdiercnianto darken
Every word from Proto-Indo-European dʰer-Every word from Proto-Indo-European dʰerg-Every word from Proto-Indo-European dʰerg-o-s