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duplicity

noun

  1. contradictory doubleness of thought, speech, or action
  2. the quality or state of being double or twofold
  3. (law) the technically incorrect use of two or more distinct items (such as claims, charges, or defenses) in a single legal action
L319879 on Wikidata ↗

Wiktionary

Pronunciation: /duˈplɪ.sɪ.ti/ / /dju-/

noun

Etymology: From Latin duplicare (double). Equivalent to duplex + -ity.

  1. Intentional deceptiveness; double-dealing.
  2. The quality of being double or twofold.

    For instance the rod-cone 'duplicity' of retinal function was first enunciated by the German microscopist Max Schultze in 1866 […]