precatio
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
Latin > English (Lewis & Short)
prĕcātĭo: ōnis, f. precor.
I 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.—
II Transf., concr., a form of prayer with superstitious people (post-Aug.), Plin. 28, 4, 9, § 42.