pernicity en · NOUN
Etymology
From pernic(ious) + -ity, from Latin pernicitas. See pernicious.
Meanings
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(obsolete, uncountable) swiftness; celerity
the rest that have no such armature, should be endued with great swiftness or pernicity
1691, John Ray, The Wisdom of God Manifested in the Works of the Creation. […], London: […] Samuel Smith, […], →OCLC: