- Hyphenation: he‧or‧tol‧o‧gy
- The study of religious festivals.
1901, A Priest of the Diocese of Westminster, “Preface”, in Rev. J. Wilhelm, D.D., Ph.d., editor, Heortology: a history of the Christian festivals from their origin to the present day, London: Kegan Paul, Trench, Trübner & Co., Limited, translation of Heortologie, oder, das Kirchenjahr und die Heiligenfeste in ihrer geschichtlichen Entwicklung by Karl Adam Heinrich Kellner, published 1908, page vi:
- For the same reason, in accordance with the meaning of the term "Heortology," he has concerned himself with those festivals alone which are publicly celebrated, or were so celebrated formerly.