Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
mogiła
←
Proto-Slavic
*mogyla
(inherited)
→
Polish
mogilny
(affix)
→
Polish
mogiłka
(suffix)
→
Serbo-Croatian
гомила
(cognate)