Abstract
The philosophical literature understands ontological priority in two ways, in terms of dependence, and in terms of degrees-of-being. These views are not reconcilable in any straightforward manner. However, they can be reconciled indirectly, if both are seen as instances of higher-level concept that is a modification of John Duns Scotus' notion of essential order. The result is a theory of ontological priority that takes the form of a list of membership criteria for the class of "ontological priority relations", of which dependence and degrees-of-being are just two examples