Definition of genethliacal in English:

genethliacal

adjective

  • Relating to the forecasting of a person's character and future life and circumstances, based on the relative positions of the stars and planets at the time of that person's birth; specifically designating the branch of astrology concerned with this.

Origin

Early 17th century; earliest use found in Samuel Purchas (bap. 1577, d. 1626), geographical editor and compiler and Church of England clergyman. From post-classical Latin genethliacus genethliac + -al.

Pronunciation

genethliacal

/ˌdʒɛnɪθˈlʌɪəkl/