Etymology

eighteenish

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Today it means: Of about eighteen years of age. Full definition →

English eighteen ← Middle English eightetene ← Anglian Old English eahtatēne
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The story

  1. Proto-Indo-European*oḱtṓw
  2. Proto-Germanic*ahtōu
  3. Proto-Indo-European*déḱm̥
  4. Proto-Germanic*tehun
  5. Proto-Germanic*ahtōutehun
  6. Anglian Old Englisheahtatēne
  7. Middle Englisheightetene
  8. Englisheighteen
  9. English todayeighteenish

From eighteen + -ish.

Etymology from Wiktionary, CC BY-SA 4.0.