Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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German -igen
German -ig (suffix)
German en (suffix)

German beabsichtigen (confix)
German steinigen (affix)
German beseitigen (affix)
German nächtigen (mention)
German einhändigen (affix)
German belobigen (affix)
German verköstigen (affix)
German befehligen (suffix)
German vergegenwärtigen (affix)
German aushändigen (affix)
Esperanto -igi (derived)
Ido -igar (borrowed)