Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English ecumene
Ancient Greek οἰκουμένη (borrowed)
Ancient Greek οἰκέω (mention)
Ancient Greek οἶκος (mention)

English ecumenism (suffix)
English ecumenopolis (suffix)
English anecumene (prefix)
Indonesian oikumene (link)