Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
pěna
←
Czech
pěnový
(link)
←
Czech
pěnit
(link)
←
Proto-Slavic
*pěna
(inherited)
→
Czech
pěnobeton
(affix)