inveteracy

noun
in·​vet·​er·​a·​cy | \ in-ˈve-t(ə-)rə-sē How to pronounce inveteracy (audio) \

Definition of inveteracy

: the quality or state of being obstinate or persistent : tenacity

First Known Use of inveteracy

circa 1719, in the meaning defined above

History and Etymology for inveteracy

inveterate + -cy

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The first known use of inveteracy was circa 1719

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