INVET'ERATE, a. [L. inveteratus, invetero; in and vetero, from vetus, old.]
1. Old; long established. It is an inveterate and received opinion--2. Deep rooted; firmly established by long continuance; obstinate; used of evils; as an inveterate disease; an inveterate abuse; an inveterate course of sin.3. Having fixed habits by long continuance; used of persons; as an inveterate sinner.4. Violent; deep rooted; obstinate; as inveterate enmity or malice.INVET'ERATE, v.t. [L. invetero, to grow old.]
To fix and settle by long continuance. [Obsolete or little used.]