Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Prussian
ugnis
←
Proto-Balto-Slavic
*ugnis
(inherited)
←
Proto-Indo-European
*h₁n̥gʷnís
(inherited)
→
Czech
oheň
(cognate)
→
Latin
ignis
(cognate)