Webster's Revised Unabridged Dictionary (1913 + 1828)
result(s) from the 1913
In*vet"er*ate (?), a. [L. inveteratus, p. p. of inveterare to render old; pref. in- in + vetus, veteris, old. See Veteran.]
1. Old; long-established. [Obs.]
It is an inveterate and received opinion.
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.
3. Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.
4. Malignant; virulent; spiteful.
In*vet"er*ate (?), v. t. To fix and settle by long continuance. [Obs.]