地ち名めい学がくMeanings1nountoponymy; toponomasticsAcademic term for the study of place names, their origins, meanings, and usage.地ち名めい学がくは、地ち理り学がくと言げん語ご学がくの両りょう方ほうに関かん係けいする学がく問もんです。Toponymy is a field related to both geography and linguistics.