Greco-Latin UK /ˌɡɹiːkəʊˈlæt.ɪn/US /ˌɡɹɛkoʊˈlæt.n̩/ adjective1 •Derived from or pertaining to the Ancient Greek and Latin languages.The German sense of Geist does not take its measure from the technical philosophical sense of the Greco-Latin spiritus. — 1999