The Collaborative International Dictionary
Genethlialogy
Genethlialogy \Ge*neth`li*al"o*gy\, n. [Gr. geneqlhalogi`a astrology; gene`qlh birth + lo`gos discourse.] Divination as to the destinies of one newly born; the act or art of casting nativities; astrology.
Wiktionary
genethlialogy
n. divination of the destiny of a newborn; the art of casting nativity; astrology.