D defs.my
Entry 2 senses Webster, 1913

Inveteracy

· In·vet·er·a·cy · IPA
01 n. Firm establishment by long continuance; firmness or deep-rooted obstinacy of any quality or state acquired by time; as, the inveteracy of c…
  1. 1.
    Firm establishment by long continuance; firmness or deep-rooted obstinacy of any quality or state acquired by time; as, the inveteracy of custom, habit, or disease; -- usually in a bad sense; as, the inveteracy of prejudice or of error.
    “An inveteracy of evil habits that will prompt him to contract more.” — A. Tucker.
  2. 2.
    Malignity; spitefulness; virulency.
    “The rancor of pamphlets, the inveteracy of epigrams, and the mortification of lampoons.” — Guardian.