Where does “butternut” come from?

butternut (English) comes from English butter, from Middle English butter, from Middle English buter, from Old English butere, from Proto-West Germanic buterā, from Latin būtȳrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός — to swell; to crowd; to be strong.

butternut (English): A North American walnut tree, "Juglans cinerea";...

Definitions

  1. A North American walnut tree, "Juglans cinerea";...

Ancestry of “butternut”, step by step

butternut traces back through two separate lines of ancestry.

via English butter

StepLanguageWordMeaning
1EnglishbutterA soft, fatty foodstuff made by churning the...
2Middle EnglishbutterAlternative form of buter
3Middle Englishbuterbutter
4Old Englishbuterebutter
5Proto-West Germanicbuterābutter
6Latinbūtȳrumbutter
7Ancient Greekβούτυρονbutter
8Ancient Greekτυρόςcheese
9Proto-Hellenictūróscheese
10Proto-Indo-Europeantuh₂-ró-s—
11Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via English nut

StepLanguageWordMeaning
1EnglishnutA hard-shelled seed; A piece of metal, usually...
2Middle Englishnute—
3Old Englishhnutunut
4Proto-West Germanichnutnut
5Proto-Germanichnutsnut
6Proto-Indo-Europeanknew-to scrape; scratch; rub; to scratch; scrape; rub
7Proto-Indo-Europeanken-to arise, begin
Every word from Proto-Indo-European tewh₂- →Every word from Proto-Indo-European tuh₂-ró-s →Every word from Proto-Hellenic tūrós →