Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Polish dół
English dale (cognate)
Proto-Indo-European *dʰol- (derived)
Proto-Slavic *dolъ (inherited)

Polish dolina (affix)
Polish dolny (suffix)
Polish Nadolny (suffix)
Polish oczodół (compound)
Polish zębodół (compound)
Polish kopidół (compound)
Polish Podole (affix)
Polish dołek (suffix)
Polish oddolny (affix)