thirty

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English[edit]

Alternative forms[edit]

Etymology[edit]

From Middle English thirty, metathetic alternant of Middle English thritti, þrittiȝ, from Old English þritiġ (thirty), from Proto-Germanic *þrīz tigiwiz (thrity, literally three tens), equivalent to three +‎ -ty.[1][2] Cognate with Scots therty, tretty (thirty), West Frisian tritich (thrity), Dutch dertig (thrity), German dreißig (thirty).

Pronunciation[edit]

Numeral[edit]

thirty

  1. The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.

Related terms[edit]

Translations[edit]

Derived terms[edit]

Noun[edit]

thirty (plural thirties)

  1. (slang) A rack of thirty beers.

References[edit]

  1. 1.0 1.1 thirty” in Merriam-Webster Online Dictionary, Merriam-Webster Online
  2. 2.0 2.1 thirty” in Dictionary.com Unabridged, v1.0.1, Lexico Publishing Group, 2006.
  3. ^ Macmillan (US) (compare Macmillan (UK)
  4. ^ the Oxford Advanced Learner's Dictionary