Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
miłosierdzie
←
Polish
miły
(affix)
←
Polish
-o-
(affix)
←
Polish
serce
(affix)
←
Polish
-ie
(affix)
←
Russian
милосе́рдие
(cognate)