Lewis Short
prĕcātĭo (noun F) : precor.
* Lit., a praying, prayer (class.): sollemnis comitiorum precatio,Cic. Mur. 1, 1: precatione uti,id. Tusc. 1, 47, 114: precationem facere,Liv. 39, 18; Plin. 28, 2, 3, § 10: auguralis, Paul. ex Fest. p. 351 Müll.
* Transf., concr., a form of prayer with superstitious people (post-Aug.), Plin. 28, 4, 9, § 42.
Charlton T. Lewis, Charles Short, A Latin Dictionary