Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
ка́мен
→
Bulgarian
каменен
(affix)
→
Bulgarian
камъне
(affix)
→
Bulgarian
каменист
(affix)
→
Bulgarian
каменарка
(affix)
→
Latvian
akmens
(cognate)