Where does “sinnefertsjustering” come from?

sinnefertsjustering (West Frisian) comes from West Frisian fertsjustering, from West Frisian fertsjusterje, from West Frisian tsjuster, from Old Frisian thiūstere, from Proto-West Germanic þiustrī, from Proto-West Germanic þimstr, from Proto-Germanic þimstraz, from Proto-Indo-European témH-s-ro-s — dark.

sinnefertsjustering (West Frisian): solar eclipse

Definitions

  1. solar eclipse

Ancestry of “sinnefertsjustering”, step by step

sinnefertsjustering traces back through two separate lines of ancestry.

via West Frisian fertsjustering

StepLanguageWordMeaning
1West Frisianfertsjusteringdarkening
2West Frisianfertsjusterjeto darken, to make dark
3West Frisiantsjusterdark
4Old Frisianthiūstere—
5Proto-West Germanicþiustrīdark, gloomy
6Proto-West Germanicþimstrdark, dusky
7Proto-Germanicþimstraz—
8Proto-Indo-EuropeantémH-s-ro-s—
9Proto-Indo-EuropeantemH-dark

via West Frisian sinne

StepLanguageWordMeaning
1West Frisiansinnesun
2Old Frisiansunnesun
3Proto-West Germanicsunnāsun
4Proto-Germanicsunnǭthe sun
5Proto-Indo-Europeansh̥₂uénsun; the Sun
6Proto-Indo-Europeansóh₂wl̥sun
Every word from Proto-Indo-European temH- →Every word from Proto-Indo-European témH-s-ro-s →Every word from Proto-Germanic þimstraz →