Where does “Butternacht” come from?

Butternacht (German) comes from German butter, from Middle High German buter, from Old High German butira, from Proto-West Germanic buterā, from Latin būtȳrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός, from Proto-Hellenic tūrós — to swell; to crowd; to be strong.

Butternacht (German): The night of the 1st of August 1963, during which the village of Elten reverted to German sovereignty after fourteen years of Dutch administration, on which occasion very many exporters of dutiable goods (especially butter) parked their freight trucks in the village overnight in order to export thos

Definitions

  1. The night of the 1st of August 1963, during which the village of Elten reverted to German sovereignty after fourteen years of Dutch administration, on which occasion very many exporters of dutiable goods (especially butter) parked their freight trucks in the village overnight in order to export thos

Ancestry of “Butternacht”, step by step

Butternacht traces back through two separate lines of ancestry.

via German butter

StepLanguageWordMeaning
1Germanbutterinflection of buttern: ## first-person singular...
2Middle High Germanbuterbutter
3Old High Germanbutirabutter
4Proto-West Germanicbuterābutter
5Latinbūtȳrumbutter
6Ancient Greekβούτυρονbutter
7Ancient Greekτυρόςcheese
8Proto-Hellenictūróscheese
9Proto-Indo-Europeantuh₂-ró-s
10Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via German nacht

StepLanguageWordMeaning
1Germannachtnight
2Middle High Germannahtnight
3Old High Germannahtnight
4Proto-West Germanicnahtnight
5Proto-Germanicnahtsnight
6Proto-Indo-Europeannókʷtsnight
7Proto-Indo-Europeannegʷ-bare, naked
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tuh₂-ró-sEvery word from Proto-Hellenic tūrós