Definition of precation in English:

precation

noun

rare
  • Praying, supplication; a prayer, an entreaty.

Origin

Mid 16th century; earliest use found in Hall's Vnion: Henry V. From classical Latin precātiōn-, precātiō act of supplication, prayer, formula of words used in prayer from precāt-, past participial stem of precārī to pray + -iō.

Pronunciation

precation

/prɪˈkeɪʃn/