Where does “Weihnachtsinsel” come from?

Weihnachtsinsel (German) comes from German Weihnacht, from Middle High German wīhenaht, from Middle High German naht, from Old High German naht, from Proto-West Germanic naht, from Proto-Germanic nahts, from Proto-Indo-European nókʷts, from Proto-Indo-European negʷ- — bare, naked.

Ancestry of “Weihnachtsinsel”, step by step

Weihnachtsinsel traces back through two separate lines of ancestry.

via German Weihnacht

StepLanguageWordMeaning
1GermanWeihnachtAlternative form of Weihnachten
2Middle High GermanwīhenahtChristmas
3Middle High Germannahtnight
4Old High Germannahtnight
5Proto-West Germanicnahtnight
6Proto-Germanicnahtsnight
7Proto-Indo-Europeannókʷtsnight
8Proto-Indo-Europeannegʷ-bare, naked

via German insel

StepLanguageWordMeaning
1Germaninselan island, an isle
2Middle High Germaninsel—
3LatinĪnsula—
4Proto-Italicenselā—
Every word from Proto-Indo-European negʷ- →Every word from Proto-Indo-European nókʷts →Every word from Proto-Germanic nahts →