triskaidekaphobia \tris-ky-dek-uh-FOH-bee-uh\, noun:
A morbid fear of the number 13 or the date Friday the 13th.
Who knew there was such a thing? Maybe I should check and see if my fear of being hit by a car while crossing the street behind a bus has a name, maybe I will just give it a name:
Hitbycarbehindabusaphobia
JVD

JVD, interesting. I didn’t know of such a noun.