Where does “gistra” come from?

gistra (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 “gistra”, step by step

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

Words derived from “gistra

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