Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
korzystny
←
Polish
korzyść
(affix)
←
Polish
-ny
(affix)
→
Polish
niekorzystny
(prefix)
→
Polish
korzystnie
(affix)
→
Ukrainian
корисний
(cognate)