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Etymology 1[edit]

From Latin pertinacia, from pertinax. See pertinacious.


pertinacy (usually uncountable, plural pertinacies)

  1. Obsolete form of pertinacity.
    (Can we find and add a quotation of Chaucer to this entry?)

Etymology 2[edit]

From Latin pertinere.


pertinacy (uncountable)

  1. The quality or state of being pertinent; pertinence.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for pertinacy in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)