absit omen

Related to absit omen: portents

absit omen

(ˈæbsɪt ˈəʊmɛn) may the presentiment not become real or take place[literally: may the (evil) omen be absent]

absit omen

A Latin phrase meaning may there be no ill omen, used to express a wish that something bad that has been mentioned will not actually happen.