Lat. “In procinctu,” which is primarily a military phrase, procinctus meaning “girding up” or “girdle,” the expression having reference to the girding on of armour for the battle. “Testamentum facere in procinctu” means “to make one’s will on the eve of battle.” The expression passed into a proverb for readiness in general. E.g. “clementiam in procinctu habere,” “to be ready to show mercy.” Here, however, St. Ambrose uses the phrase more in its original sense, with reference to the impending conflict of the Goths and Romans, in which Gratian was expecting to take part, though, as a matter of fact, the battle of Hadrianople had been fought, and Valens was dead, before he arrived on the scene of action.