Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Czech půl
Proto-Indo-European *(s)pelH- (derived)
Proto-Slavic *polъ (inherited)
Old Czech pól (inherited)

English split (cognate)
English polka (mention)
Czech polka (mention)
Czech poledne (compound)
Czech odpoledne (compound)
Czech dopoledne (compound)
Czech půltón (prefix)
Czech půlnoc (compound)
Czech spolu (affix)
Czech polovina (affix)
Czech půlit (affix)
Czech půlka (affix)
Czech půlměsíc (prefix)
Czech půlmaraton (affix)
Russian полька (mention)