Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ingrian
ainava
←
Estonian
ainus
(cognate)
←
Finnish
ainoa
(cognate)
←
Proto-Germanic
*ainagaz
(derived)
←
Proto-Germanic
*ainaz
(derived)
→
Estonian
ainus
(cognate)
→
Finnish
ainoa
(cognate)