Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latvian
puika
←
Estonian
poeg
(mention)
←
Finnish
poika
(mention)
←
Proto-Finnic
*poika
(cognate)
→
Latgalian
puika
(cognate)
→
Latvian
puisis
(mention)
→
Latvian
puisis
(mention)