A long word built from Greek parts
Fear of Friday the thirteenth is called paraskevidekatriaphobia. Its parts come from Greek: paraskevi means “Friday,” dekatreis means “thirteen,” and phobia means “fear.” The word is a descriptive label, not evidence that the date has a special power.
The reference to Frigg belongs to a different part of the story: English “Friday” is historically associated with the Norse goddess. But Frigg is not one of the word’s components. The name for the fear instead spells out the day and date using Greek roots.
A name for a familiar unease
The label turns a broad superstition into a precise phrase: it identifies the feared combination, rather than a fear of Fridays or the number thirteen on its own. That distinction is useful because the date’s reputation depends on the two appearing together.
Its elaborate sound can make the fear seem more formal than it is. Underneath the many syllables is a simple description—anxiety about a particular day on the calendar.
