Etymology

eighty

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Today it means: The cardinal number occurring after seventy-nine and before eighty-one, represented in Roman numerals as LXXX and in Arabic numerals as 80. Full definition →

Middle English eightety ← Old English hundeahtatiġ ← Proto-Germanic *ahtōutēhundą
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The story

  1. Proto-Germanic · inherited from*ahtōutēhundą“eighty”
  2. Old English · inherited fromhundeahtatiġ
  3. Middle English · inherited fromeightety
  4. English todayeighty

Inherited from Middle English eightety, eiȝti, eiȝtety, from Old English hundeahtatiġ, from Proto-Germanic *ahtōutēhundą (“eighty”), equivalent to eight + -ty. Cognate with Scots hechty, auchty (“eighty”), Saterland Frisian tachentich (“eighty”), West Frisian tachtich (“eighty”), Dutch tachtig (“eighty”), Low German tachentig (“eighty”), German achtzig (“eighty”), Swedish åttio (“eighty”), Norwegian åtti (“eighty”), Icelandic áttatíu (“eighty”).

Etymology from Wiktionary, CC BY-SA 4.0.