Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
гной
←
Proto-Indo-European
*gʰneyH-
(root)
←
Proto-Slavic
*gnojь
(inherited)
→
Romanian
gunoi
(cognate)
→
Russian
гнойник
(affix)
→
Russian
гнойный
(affix)