Enniakosioihendecaphobia

Enniakosientekaphobia (from Greek enniakosioi, "nine hundred", and hendeca, "eleven") is the fear of. It can stem from the fear of or fear of. Some may also fear, which was the date of  in.

Many sufferers of enniakosientekaphobia feel refrained from dialing 911 even when self or somebody is in an emergency, which may lead to very serious consequences. Those who fear September 11 would stay home for that whole day, including not getting on an airplane.