Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Polish
chudoba
←
Proto-Slavic
*xudoba
(inherited)
←
Proto-Slavic
*xudъ
(mention)
←
Proto-Slavic
*-oba
(mention)
←
Old Polish
chudy
(suffix)
←
Old Polish
oba
(suffix)
→
Polish
chudoba
(inherited)