Inveteracy :: Inveteracy (n.) 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..
Inveterate :: Inveterate (a.) Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse..
Inveterate :: Inveterate (a.) Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker..