Etymology

weeklong

W4E1E1K5L1O1N1G2

Today it means: Lasting for (approximately) one week. Full definition →

English long ← Middle English long ← Old English lang
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The story

  1. Proto-Indo-European*weyg-
  2. Proto-Germanic*wikǭ
  3. Proto-West Germanic*wikā
  4. Old Englishwice
  5. Middle Englishwyke
  6. Englishweek
  7. Proto-Indo-European*dlongʰos
  8. Proto-Germanic*langaz
  9. Proto-West Germanic*lang
  10. Old Englishlang
  11. Middle Englishlong
  12. Englishlong
  13. English todayweeklong

From week + -long.

Etymology from Wiktionary, CC BY-SA 4.0.