Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Polish syn
Proto-Balto-Slavic *sū́ˀnus (inherited)
Proto-Indo-European *suHnús (inherited)
Proto-Slavic *synъ (inherited)

Polish synowa (suffix)
Polish skurwysyn (compound)
Polish sukinsyn (mention)
Polish synal (suffix)
Polish synuś (suffix)
Polish synulek (suffix)
Polish syneczek (suffix)
Polish syncio (suffix)
Polish synek (suffix)
Polish synobójca (affix)