The term "olog" is short for "ontology log". "Ontology" derives from onto-, from the Greek ὤν, ὄντος "being; that which is", present participle of the verb εἰμί "be", and -λογία, -logia: science, study, theory. An olog for a given domain is a category whose objects are boxes labeled with phrases (more specifically, singular indefinite noun phrases) relevant to the domain, and whose morphisms are d
