Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
tühi
←
Proto-Finnic
*tühjä
(inherited)
←
Lithuanian
tuščias
(cognate)
→
Finnish
tyhjä
(cognate)
→
Ingrian
tyhjä
(cognate)
→
Livvi
tyhjy
(mention)