Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*strьžьnь
→
Polish
rdzeń
(mention)
→
Russian
стержень
(inherited)
→
Silesian
drzyń
(inherited)
→
Old Polish
zdrżeń
(inherited)