Noah Webster
Inveterate
INVET'ERATE, adjective [Latin 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, verb transitive [Latin invetero, to grow old.]
To fix and settle by long continuance. [Obsolete or Little Used.]