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triskaidekaphobia

[tris-kahy-dek-uh-foh-bee-uh, tris-kuh-]
noun
  1. fear or a phobia concerning the number 13.
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Origin of triskaidekaphobia

1910–15; < Greek triskaídeka thirteen + -phobia
Related formstris·kai·dek·a·pho·bic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for triskaidekaphobia

triskaidekaphobia

noun
  1. an abnormal fear of the number thirteen
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Derived Formstriskaidekaphobic, adjective, noun

Word Origin

C20: from Greek triskaideka thirteen + -phobia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for triskaidekaphobia

n.

"fear of the number 13," 1911, from Greek treiskaideka "thirteen" + -phobia "fear."

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Online Etymology Dictionary, © 2010 Douglas Harper