 Was verisimilis used as a synonym for probabilis by medieval scholastics? Albert (ibid.) claims straightforwardly that “probable things are truth-like” (probabilia … sunt  verisimilia).[8]  Other scholastic uses of these words suggest instead a mere relation of frequent mutual implication. Probable opinions were usually truth-like because their probability prima facie justified an assumption of truth. Truth-like signs often justified an ascription of probability to an assertion. The widespread combination of probabilis with particular kinds of proposition (Aristotelian endoxa; see Section 3.1) and of verisimilis with signs are nevertheless good reasons to assume that these predicates were not synonymous. The distinction between the terms may reflect established differences in ancient Greek terminology, tying probabilis to pithanon (persuasive, adoptable) and verisimilis to eikos (truth-like). Such differences arguably already pervaded Cicero’s usage of probabilis and verisimilis, although the matter is  contentious.[9]