vetero-testamentary UK /ˌvɛtəɹəʊˌtɛstəˈmɛntəɹi/US /ˌvɛtəɹoʊˌtɛstəˈmɛntəɹi/ adjective1 •Of or pertaining to the Old Testament of the Bible.By this brief analysis of vetero-testamentary evolution of the notion of the altar we simply wish to show the solicitude for and importance of the altar for the Jews of old. — 1963