Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
parst
←
Proto-Slavic
*pьrstъ
(inherited)
→
Latvian
pirksts
(cognate)
→
Polish
naparstek
(mention)