Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Esperanto ingo
Esperanto -ingo (back-formation)

Esperanto flamingo (suffix)
Esperanto ŝlosilingo (suffix)
Esperanto kandelingo (suffix)
Esperanto glavingo (suffix)
Esperanto fingringo (suffix)
Esperanto penisingo (suffix)
Esperanto plumingo (suffix)
Esperanto viringo (suffix)
Esperanto agrafingo (suffix)
Esperanto aksingo (suffix)
Esperanto ampolingo (suffix)
Esperanto glaningo (suffix)