Where does “gesteron” come from?

gesteron (Old High German) comes from Proto-Germanic gestra-, from Proto-Indo-European dʰǵʰyésteros, from Proto-Indo-European dʰǵʰyes-, from Proto-Indo-European dʰeǵʰ- — day.

Ancestry of “gesteron”, step by step

gesteron traces back through two separate lines of ancestry.

via Proto-Germanic gestra-

StepLanguageWordMeaning
1Proto-Germanicgestra-
2Proto-Indo-Europeandʰǵʰyésterosyesterday
3Proto-Indo-Europeandʰǵʰyes-yesterday, the day before
4Proto-Indo-Europeandʰeǵʰ-day

via Proto-West Germanic *gesteran

StepLanguageWordMeaning
1Proto-West Germanic*gesteranyesterday

Words derived from “gesteron

Every word from Proto-Indo-European dʰeǵʰ-Every word from Proto-Indo-European dʰǵʰyes-Every word from Proto-Indo-European dʰǵʰyésteros