genethliac means of or pertaining to the casting of horoscopes at a person's birth. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why this word is great
GENETHLIAC — [Adjective] Of or pertaining to the casting of a horoscope at the precise moment of a person's birth. From Latin *genethliacus*, from Ancient Greek γενεθλιακός (*genethliakós*, "belonging to a birthday"), from γένεσις (*génesis*, "birth, origin"). Unlike "natal," which pertains broadly to birth, or "astrological," which denotes a broad celestial philosophy, genethliac specifies the technical obsession of plotting a destiny against the stars at its inception. It is the scratch of a stylus on vellum at the first cry, the cool slide of an astrolabe's rule in lamplight, and the precise geometry of intersecting lines that claim to map a life—a fleeting, calculated attempt to anchor a human story against the indifferent drift of the cosmos.
adj
- Of or pertaining to the casting of horoscopes at a person's birth
noun
- A person who casts horoscopes.“The follie of our genethliaks, or nativiti-casters.”
- A birthday poem.