hemerology

noun

Etymology: From Ancient Greek ἡμέρᾱ (hēmérā, “day; date”) (a variant of ἦμαρ (êmar, “day”), ultimately from Proto-Indo-European *h₂eh₃- (“be hot, burn”)) + -ology (from Ancient Greek -λογῐ́ᾱ (-logĭ́ā, suffix indicating the study of something, or a branch of knowledge), from λόγος (lógos, “word; explanation; subject matter”) (from λέγω (légō, “to arrange, put in order”), from Proto-Indo-European *leǵ- (“to gather”)) + -ίᾱ (-íā, suffix forming a feminine abstract noun) (ultimately from Proto-Indo-European *-i-eh₂ (suffix forming a collective noun))).

1. The study of calendars, especially with a view to identifying propitious days.

   “Hemerology, (Greek) a Calender, or Book, wherein are regiſtred the paſſages of every day.”

   “It is not necessary to an intelligent comprehension of the Gospels, as they have been handed down to us, that they should possess an exact hemerology.”