inveteracy

Meanings

1. 1
   noun

   the quality or state of being long-established, obstinate, or deeply persistent

   The inveteracy of the custom made reform unusually difficult.

Formed from inveterate + -cy. Inveterate comes from Latin inveterare, 'to make old,' from vetus, 'old'; inveteracy therefore describes a quality made firm through long duration or habit.

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