Ambiguity and Intention in Ancient and Medieval Rhetorical Thought

Ancient and medieval rhetorical theorists gave much attention to discovering an author's intent ( voluntas ) from the letter of a document ( scriptum ). By contrast, resolving ambiguity ( ambiguitas ) was supposedly easy. But in fact, ambiguity proves the more slippery problem because it functions somewhere between argumentation (a controversy to be disputed) and stylistic embellishment. Legal discourse often tried to impose limits on ambiguity, but at the same time ambiguitas could be quietly weaponized — in both law and poetry — to transform legal and even theological meaning. Where rhetorical theorists such as Cicero, Quintilian, Augustine, William of Champeaux (c. 1100), Geoffrey of Vinsauf (c. 1210), and Boncompagno da Signa (c. 1235), as well as legal theorists such as Henry de Bracton, try to pin down how ambiguity works, poets such as William Langland seem to revel in the slippages that it affords.