Triskaidekaphobia is the fear of what?
Friday the 13th one occurrence each. A Friday the 13th occurs during any month that begins on a Sunday. The fear of the number 13 has been given a scientific name: "triskaidekaphobia"; and on analogy to this the fear of Friday the 13th is called "paraskevidekatriaphobia", from the Greek words "Paraskeví" (Παρασκευή, meaning "Friday"), and "dekatreís" (δεκατρείς, meaning "thirteen"). The superstition surrounding this day may have arisen in the Middle Ages, "originating from the story of Jesus' last supper and crucifixion" in which there were 13 individuals present in the Upper Room on the 13th of Nisan Maundy Thursday, the night before his
Triskaidekaphobia Triskaidekaphobia Triskaidekaphobia ( , ; ) is fear or avoidance of the number . It is also a reason for the fear of Friday the 13th, called "paraskevidekatriaphobia" () or "friggatriskaidekaphobia" (after Frigg, the Norse goddess after whom Friday is named in English). The term was used as early as in 1910 by Isador Coriat in "Abnormal Psychology". From the 1890s, a number of English language sources relate the "unlucky" thirteen to an idea that at the Last Supper, Judas, the disciple who betrayed Jesus, was the 13th to sit at the table. The Bible says nothing about the order