English

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Etymology

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From proponent +‎ -cy.

Noun

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proponency (uncountable)

  1. (US) Advocacy.
    • 1935, “letter”, in Department of science, art and literature: Hearings before the Committee on Patents, page 112:
      The chairman of the committee will be very glad to give you the opportunity to express your views, whether of proponency or opponency.

Translations

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