Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
clei
←
Polish
klej
(cognate)
←
Russian
клей
(cognate)
→
Romanian
cleios
(suffix)
→
Romanian
descleia
(affix)