Praetor was a title granted by the government of Ancient Rome to men acting in one of two official capacities: the commander of an army (in the field or, less often, before the army had been mustered); or, an elected magistratus (magistrate), assigned various duties (which varied at different periods in Rome's history). The functions of the magistracy, the praetura (praetorship), are described by the adjective:In the Latin language, the ending of the adjective agrees with the case, gender, and number, of the noun, which is why the ending of praetori- varies in the phrases given.