:For other uses, see Supine (disambiguation). In grammar, a supine is a form of verbal noun used in some languages. In Latin In Latin there are two supines, I. and II. They are originally the accusative and dative or ablative forms of verbal noun in the fourth declension, respectively. The first supine is often used as the fourth principal part of Latin verbs and ends in -um. It has two uses. The first is with verbs of motion and indicates purpose. For example, "Gladiatores adfuerunt pugnatum"… (More on Supine)