Last modified on 19 May 2015, at 13:25

bona fide

See also: bonâ fide


Alternative formsEdit


  • (UK) IPA(key): /ˌbəʊ.nəˈfaɪ.di/
  • (US) IPA(key): /ˌboʊnəˈfaɪdi/, /ˈboʊnə.faɪd/, /ˈboʊnəˌfiːdeɪ/
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Usage notesEdit

The pronunciation IPA(key): /ˈboʊnə.faɪd/, is the most common one in the USA and therefore listed first in American dictionaries, incl. American Heritage, Merriam-Webster, and the American version of Collins.[1]


From the Latin bonā fidē (“in good faith”) which is the ablative case of bona fidēs (“good faith”).


bona fide (not comparable)

  1. In good faith.
    Although he failed, the prime minister made a bona fide attempt to repair the nation's damaged economy.
  2. Genuine; not counterfeit.
    This is a bona fide Roman coin.
    • 2000, O Brother Where Art Thou? (movie):
      Ulysses Everett McGill: I am the only daddy you got! I’m the damn pater familias!
      Wharvey Gal: But you ain’t bona fide!

Usage notesEdit

Sometimes misspelled as *bonafied, by incorrectly analyzing as the past tense of assumed *bonafy.[2]




See alsoEdit


  1. ^ Webster's Third New International Dictionary, Unabridged
  2. ^ Bonafied / Bona Fide, Paul Brians