Where does “eksteroog” come from?
eksteroog (Dutch) comes from Dutch ekster, from Middle Dutch egestre, from Old Dutch agastra, from Proto-West Germanic agastrijā, from Proto-West Germanic ag-ad- ~ ag-at-, from Proto-West Germanic agu, from Proto-Germanic agō, from Proto-Indo-European h₂oḱ-éh₂ — sharp.
eksteroog (Dutch): clavus, corn
Ancestry of “eksteroog”, step by step