hemerology

Meaning

Noun

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

Origin

• From Ancient Greek ἡμέρᾱ ("day; date") (a variant of ἦμαρ, ultimately from Proto-Indo-European *h₂eh₃- ("be hot, burn")) -ology (from Ancient Greek -λογῐ́ᾱ ("suffix indicating the study of something, or a branch of knowledge"), from λόγος (from λέγω, from Proto-Indo-European *leǵ- ("to gather")) + -ίᾱ (ultimately from Proto-Indo-European *-h₂ ("suffix forming a collectve noun"))).