Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Portuguese auto
Proto-Indo-European *h₂eǵ- (derived)
Latin actus (inherited)
Latin agō (mention)
Portuguese ato (doublet)
Portuguese acto (mention)
Portuguese auto-da-fé (link)
Portuguese automóvel (clipping)
Portuguese auto- (link)

Italian auto (derived)
Portuguese ato (doublet)
Portuguese automóvel (prefix)
Portuguese autoindulgente (prefix)
Portuguese autódromo (affix)
Portuguese autoajuda (prefix)
Portuguese automedicação (prefix)
Portuguese autogolo (prefix)