fifty

• fiftie (obsolete)
• fitty, fiddy (slang)

From Middle English fifty, from Old English fīftiġ, from Proto-Germanic *fimf tigiwiz (“five tens”). By surface analysis, five +‎ -ty.

• (Received Pronunciation, General American) enPR: fĭf'tē, IPA^(key): /ˈfɪfti/

• Audio (General American):

  (file)

• Audio (General Australian):

  (file)

• Rhymes: -ɪfti
• Hyphenation: fif‧ty

fifty

1. The cardinal number occurring after forty-nine and before fifty-one.
   • 1924, Herbert Weir Smyth, “II. The Suppliant Maidens”, in Aeschylean Tragedy, page 51:

     It was just fifty children that Selene bore to Endymion. Are not the innumerable waves typified by the fifty Nereïds? And did not Priam have fifty sons and fifty daughters?

   • 2008, Christopher Paolini, “Assault on Helgrind”, in Brisingr, page 39:

     Searching again, he noticed something that had eluded him before: a single flower, a gentian, blooming not fifty feet in front of them, where, by all rights, there ought to be solid rock.

   • 2017 April 17, Rachel Monroe, “#Vanlife, the Bohemian Social-Media Movement”, in The New Yorker‎^[1], archived from the original on 4 August 2017:

     Accounts with between fifty thousand and two hundred thousand followers are considered “microinfluencers,” and tend to have higher engagement rates—that is, a larger share of their followers like, favorite, or comment on their posts—than those with millions of followers.

• 50 (Arabic numeral); L (Roman numeral); fivety (proscribed)

• Last: forty-nine, forty
• Next: fifty-one, sixty

fifty (plural fifties)

1. (countable) A banknote or coin with a denomination of 50.

   Do you want small bills or are fifties OK?

   • 1897, Richard Marsh, The Beetle:

     ‘If you shoot him I’ll give you fifty pounds.’
     ‘All right!’ The driver laughed. ‘I’ll do my best to earn that fifty!’

2. (cricket) A batsman's score of at least 50 runs and less than 100 runs.

• Tiffy, tiffy

• fifftiȝ, fifte, fifti, fyffty, fyfty

From Old English fīftiġ, from Proto-Germanic *fimf tigiwiz; equivalent to fyf +‎ -ty.

• IPA^(key): /ˈfiftiː/, (rare) /ˈfiːftiː/

fifty

1. fifty

• fiftithe

• English: fifty
• Scots: fifty, fyfty

• “fiftī, card. num.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.