Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Czech křen
Proto-Slavic *xrěnъ (inherited)
Old Czech křěn (inherited)
Old Czech chřěn (mention)

Czech křenový (affix)
German Kren (cognate)
Lower Sorbian kśěn (cognate)
Vilamovian krejn (borrowed)