what is the fear of 13 called

It's estimated that nearly $900 million is lost in business on this day … Triskaidekaphobia is persistent, irrational and unwarranted fear of the number 13. It’s also referred to as friggatriskaidekaphobia while being afraid of number 13 is called triskaidekaphobia. Trisghkaidekaphobia is fear of the number 13, it is a superstition and related to a specific fear of Friday the 13th , called paraskevidekatriaphobia or friggatriskaidekaphobia. Its origin is conjectural (a matter of guesswork). Triskaidekaphobia is the fear of the number 13. Fear of the number 13: A morbid fear of the number 13. This number has always been associated with something negative or evil: Jesus’ famous Last supper had 13 guests, the 13 th being the same one who betrayed Him. The fear of Friday the 13th is called paraskevidekatriaphobia from the Greek words Paraskeví, meaning "Friday", and dekatreís, meaning "thirteen". Shockingly, nearly 20 million Americans are affected by paraskevidekatriaphobia. It's Greek: tris, "three"; kai, "and"; deka, "ten", coupled with the "phobia" ending to denote a fear. Also known as triskaidekaphobia. The term triskaidekaphobia first appeared in the early 1900s. Written reference to the superstitious fear of the number thirteen dates to the late 1800s. People with Triskaidekaphobia are called Triskaidekaphobes.