Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Portuguese -io
English -ive (link)
English -y (link)
English -ium (link)
Latin -īvus (inherited)
Portuguese -ivo (doublet)
Old Portuguese -io (inherited)

Portuguese -ivo (doublet)
Portuguese ununséptio (mention)
Portuguese ununóctio (mention)
Portuguese neurónio (mention)
Portuguese trítio (mention)
Portuguese meitnério (mention)
Portuguese bravio (mention)
Portuguese fugidio (affix)
Portuguese ludopédio (mention)
Portuguese protetório (affix)
Portuguese baldio (affix)