ABSTRACT
Apriority characterizes a way our beliefs acquire justification. Justification acquired purely in this way is apriori justification, as opposed to empirical (also called “aposteriori”) justification. Apriority then derivatively applies to knowledge or to propositions when apriori justification is or could be had, respectively. In English, philosophers today may use either the single or double words, “apriori” or “a priori,” sometimes italicizing “a priori” to indicate use of the original Latin.
