… Some people refuse to go to work on Friday the 13th; some won't eat in restaurants; many wouldn't think of setting a wedding on the date.
—David Emery
Friday the 13th film series can be frightening especially when they are released on Friday the 13th. Are you superstitious? If not, Friday the 13th may be mumbo jumbo to you or simply a nonsensical myth. Friggatriskaidekaphobia sufferers assume something dreadful could happen to them and may start to panic on Friday the 13th.
Some paraskevidekatriaphobics may not go out tonight to avoid today's ‘bad omen’. On the other hand, Friday the 13th could be a day of good luck for some people. Why should people fear the unknown like Friday the 13th? Are you paraskevidekatriaphobic?
The fear of Friday the 13th is called friggatriskaidekaphobia (Frigga being the name of the Norse goddess for whom "Friday" is named and triskaidekaphobia meaning fear of the number thirteen), or paraskevidekatriaphobia[1][2] a concatenation of the Greek words Paraskeví (Παρασκευή, meaning "Friday"), and dekatreís (δεκατρείς, meaning "thirteen") attached tophobía (φοβία, from phóbos, φόβος, meaning "fear").
—Wikipedia