ETYM Latin inveteratus, p. p. of inveterare to render old; pref. in- in + vetus, veteris, old. Related to Veteran.
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1. Firmly established by long continuance; obstinate; deep-rooted; of long standing.
2. Having habits fixed by long continuance; confirmed; habitual.
3. Long-established; confirmed.
4. Confirmed; long-established.