Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English ecologist
English eco (confix)
English logist (confix)

English palaeoecologist (prefix)
English ethnoecologist (prefix)
English paleoecologist (prefix)
English astroecologist (prefix)
English dendroecologist (prefix)
English agroecologist (prefix)
English bioecologist (prefix)
English macroecologist (prefix)
English chemoecologist (prefix)
English geoecologist (prefix)
French écologiste (derived)