Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
rudar
←
Bulgarian
рудар
(borrowed)
←
Bulgarian
руда
(mention)
←
Proto-Slavic
*ruda
(derived)
←
Proto-Slavic
*rudъ
(mention)
→
Romanian
Rudari
(mention)
→
Romanian
Rudaru
(mention)
→
Romanian
Rudariu
(mention)