Genethliac

Word of the Day for Thursday, May 23, 2013

Genethliac \juh-NETH-lee-ak\, adjective:

of or pertaining to birthdays or to the position of the stars at one's birth.

Really it must be admitted that only in England and America is there anybody who knows how to establish the genethliac theme and construct a horoscope.
-- J. K. Huysmans, translated by Keene Wallace, Down There, 1891

It must be said, however, that the Arabs went much beyond the classical doctrines of Ptolemy's Tetrabiblos and added to genethliac astrology, which was concerned with the conjunction of heavenly bodies at the moment of birth, a more popular science of interrogations and elections for every occasion in life.
-- Charles Homer Haskins, The Renaissance of the Twelfth Century, 1955

Genethalic derives from the Greek root genéthli meaning "pertaining to one's birth." It is unrelated to the word gene.

Thanks to: www.dictionary.com