eighty

From Middle English eiȝti, eyȝty, eiȝtety, aghty, 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”).

• enPR: āʹti, IPA^(key): /ˈeɪ.ti/
• (US) IPA^(key): [ˈ(ʔ)eɪ̯ɾi]

• Audio (US):

  (file)

• Rhymes: -eɪti

eighty

1. The cardinal number occurring after seventy-nine and before eighty-one, represented in Roman numerals as LXXX and in Arabic numerals as 80.

• eight
• eighteen
• eightieth

• Last: seventy-nine, seventy
• Next: eighty-one, ninety