It is true that there are the traditional terms "semelfactive" and "iterative" referring, respectively, to one and more than one instantiation of an event.    From Wordnik.com.  [languagehat.com: PLEXITY.] Reference

This is what happens in the case of the Text: it can be itself only in its difference (which does not mean its "individuality"); its reading is semelfactive (which renders all inductive-deductive sciences of texts illusory - there is no "grammar" of the text) and yet completely woven with quotations, references, and echoes.    From Wordnik.com.  [Language Log] Reference