Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Portuguese cair
Spanish caer (cognate)
Galician caer (cognate)
Proto-Indo-European *ḱad- (derived)
Proto-Italic *kadō (inherited)
Latin cadere (inherited)
Latin cadō (mention)
Old Portuguese caer (inherited)

Spanish caer (cognate)
Galician caer (cognate)
Kabuverdianu kai (derived)
Papiamentu kai (derived)
Guinea-Bissau Creole kai (derived)
Portuguese queda (link)
Portuguese caído (mention)
Portuguese decair (mention)
Portuguese descair (prefix)
Portuguese cair de amores (mention)