Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
пеще́ра
→
Russian
печора
(doublet)
→
Russian
пещерный
(affix)
→
Russian
пещеристый
(affix)