Webster's Revised Unabridged Dictionary · 1913

Inveterate

Inveterate , adjective

[Latin inveteratus, past participle of inveterare to render old; pref. in- in + vetus, veteris, old. See Veteran.]

1.
Old; long-established. [Obsolete]
It is an inveterate and received opinion. — Bacon
2.
Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse.
Heal the inveterate canker of one wound. — Shakespeare
3.
Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.
4.
Malignant; virulent; spiteful. — H. Brooke

Inveterate , transitive verb

To fix and settle by long continuance. [Obsolete] — Bacon