Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*porporъ
→
Bulgarian
пряпор
(cognate)
→
Czech
prapor
(inherited)
→
Polish
proporzec
(inherited)
→
Russian
прапорщик
(derived)
→
Russian
прапор
(derived)
→
Ukrainian
прапор
(derived)