Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
чернобы́ль
→
Czech
černobýl
(cognate)
→
Russian
Чернобыль
(mention)
→
Russian
чернобыльник
(affix)