How do you spell Inveterate

Available Definitions:
1)  a. - Old; long-established.
2)  a. - Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse.
3)  a. - Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.
4)  a. - Malignant; virulent; spiteful.
5)  v. t. - To fix and settle by long continuance.