Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
teoretyczny
←
French
théorétique
(borrowed)
←
Polish
-ny
(affix)
→
Polish
teoretycznie
(suffix)
→
Ukrainian
теоретичний
(cognate)