absit omen

/ Latin (ˈæbsɪt ˈəʊmɛn) /

may the presentiment not become real or take place

Word Origin for absit omen

literally: may the (evil) omen be absent
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012