Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Czech zrno
Proto-Balto-Slavic *źírˀna (inherited)
Proto-Indo-European *ǵr̥h₂nóm (inherited)
Proto-Slavic *zьrno (inherited)

English corn (cognate)
Czech zrnko (affix)
Czech celozrnný (affix)
Czech zrníčko (affix)
Czech vícezrnný (affix)