Where does “tiistaiaamu” come from?

tiistaiaamu (Finnish) comes from Finnish tiistai, from Old Swedish tisdagher, from Old Norse týsdagr, from Proto-Germanic *Tīwas dag, from Latin dīēs Martis, from Latin diēs, from Proto-Italic djēm, from Proto-Italic *djous — to be bright; sky, heaven.

tiistaiaamu (Finnish): Tuesday morning

Definitions

  1. Tuesday morning

Ancestry of “tiistaiaamu”, step by step

tiistaiaamu traces back through two separate lines of ancestry.

via Finnish tiistai

StepLanguageWordMeaning
1FinnishtiistaiTuesday
2Old SwedishtisdagherTuesday
3Old NorsetýsdagrTuesday
4Proto-Germanic*Tīwas dag—
5Latindīēs MartisTuesday
6LatindiēsA day, particularly
7Proto-Italicdjēmaccusative singular of *djous
8Proto-Italic*djous—
9Proto-Indo-Europeandyḗwssky, heaven; sky god
10Proto-Indo-Europeandyéwssky, heaven
11Proto-Indo-Europeandyew-to be bright; sky, heaven

via Finnish Aamu

StepLanguageWordMeaning
1FinnishAamumorning
2Englishaamumorning
Every word from Proto-Indo-European dyew- →Every word from Proto-Indo-European dyéws →Every word from Proto-Indo-European dyḗws →