Where does “torstai” come from?

torstai (Finnish) comes from Old Norse þórsdagr, from Proto-Germanic *Þunras dag, from Latin dies iovis, from Latin diēs, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws — to be bright; sky, heaven.

torstai (Finnish): Thursday

Definitions

  1. Thursday

Ancestry of “torstai”, step by step

torstai traces back through two separate lines of ancestry.

via Old Norse þórsdagr

StepLanguageWordMeaning
1Old NorseþórsdagrThursday
2Proto-Germanic*Þunras dag
3Latindies iovisThursday
4LatindiēsA day, particularly
5Proto-Italicdjēmaccusative singular of *djous
6Proto-Italic*djous
7Proto-Indo-Europeandyḗwssky, heaven; sky god
8Proto-Indo-Europeandyéwssky, heaven
9Proto-Indo-Europeandyew-to be bright; sky, heaven

via Old Swedish þōrsdagher

StepLanguageWordMeaning
1Old SwedishþōrsdagherThursday
2Proto-GermanicÞunras dagazThursday
3Proto-Germanicdagazday; name of the D-rune
4Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot

Words derived from “torstai

Every word from Proto-Indo-European dyew-Every word from Proto-Indo-European dyéwsEvery word from Proto-Indo-European dyḗws