pernicity
nounEtymology From pernic(ious) + -ity, from Latin pernicitas. See pernicious.
1
Obsolete swiftness; celerity
- the rest that have no such armature, should be endued with great swiftness or pernicity1691, John Ray, The Wisdom of God Manifested in the Works of the Creation. […], London: […] Samuel Smith, […], →OCLC: