Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
pośrednik
←
Polish
pośredni
(suffix)
←
Polish
ik
(suffix)
→
Polish
pośrednictwo
(suffix)
→
Ukrainian
посередник
(cognate)