Etymology

butterfat

but·ter·fat
B3U1T1T1E1R1F4A1T1

Today it means: The fatty components of milk and other dairy products. Full definition →

English fat ← Middle English buter ← Old English butere
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The story

  1. Proto-Indo-European*gʷṓws
  2. Proto-Hellenic*gʷous
  3. Ancient Greekβοῦς (boûs)
  4. Proto-Indo-European*tewh₂-
  5. Proto-Indo-European*tuh₂rós
  6. Proto-Hellenic*tūrós
  7. Ancient Greekτυρός (turós)
  8. Ancient Greekβούτῡρον (boútūron)
  9. Latinbūtȳrum
  10. Proto-West Germanic*buterā
  11. Old Englishbutere
  12. Middle Englishbuter
  13. Englishbutter
  14. Englishfat
  15. English todaybutterfat

From butter + fat.

Etymology from Wiktionary, CC BY-SA 4.0.