Etymologically

heresy

Etymology and origin of the English word heresy

Pronunciation

  • IPA: /ˈhɛɹəsi/[1]

Etymology

It is inherited from Middle English heresie, borrowed from Old French heresie, eresie,[2][3][4][5][6] from Late Latin haeresis (“school of thought, sect”),[2][3][4][5][6] from Ancient Greek αἵρεσις (haíresis, “a taking, a choosing; faction, sect”),[2][3][4][5][6] from haireîsthai “to choose”, the middle voice of haireîn “to take”.[2][3][4][5]

Earliest recorded meaning

Religious opinion or doctrine contrary to the orthodox doctrine of the Church (before 1225 in the OED; c. 1200 in Etymonline).[7][4][3]

Semantic evolution

Greek haíresis meant a choice, and then a philosophical school or sect,[4] and Church writers used it of the various sects of the New Testament, such as the Sadducees and Pharisees.[4][6] Christian writers in Late Latin gave it the sense of an unorthodox sect or doctrine,[4] though English Bibles usually translate it as “sect”.[4] The extended sense, an opinion in philosophy, politics or science at variance with accepted views, dates from about 1385.[7]

Timeline

  • before 1225 – a religious opinion contrary to orthodoxy.[7][3]
  • 1303 – an instance of heresy.[7]
  • 1340 – heretic.[3]
  • 1382 – a sect or school (obsolete).[7]
  • c. 1385 – an unorthodox opinion in any field.[7]

Modern meaning

Noun

  1. An opinion or doctrine contrary to established religious belief, especially the rejection of Roman Catholic dogma by a baptized member of the Church.
  2. Adherence to such an opinion or doctrine.
  3. A controversial or unorthodox opinion in politics, philosophy, science or any field, or adherence to it.
  • heresiarch
  • heretic
  • heretical
  • orthodoxy
  • dogma

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  3. ^ a b c d e f g Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  4. ^ a b c d e f g h i Harper, Douglas, Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c d Random House Webster's Unabridged Dictionary (1999), 2nd ed., New York: Random House
  7. ^ a b c d e f Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Heresy.” Etymologically, 11 Oct. 2026, etymologically.com/en/heresy. Accessed 11 Oct. 2026.

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