Pronounced: SAD-eye-urn, noun
Notes: It both is and isn’t what you may think
The word genethliac means “of, or related to, birthdays and the position of the stars at the time of one’s birth”
This word goes back to the late 1500s.
Background / Comments
This word is one of those concerned with astrology, which I have no interest in, so it is unlikely that I’d find a use for our word. It comes from the Late Latin word genethliacus (pertaining to one’s hour of birth or one’s birthday; an astrologer who calculates such an hour or day), which came from the Latin word genethliacus (one who casts horoscopes). This Latin word came from Green genethliakós, which came from genéthlios (pertaining to one’s birth), which derives from genéthlē (birth)