Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Livonian
piedāg
←
Finnish
petäjä
(cognate)
←
Proto-Finnic
*petägä
(inherited)
←
Proto-Uralic
*pečä
(inherited)
→
Ingrian
petäjä
(cognate)