Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
агода
←
Proto-Slavic
*agoda
(inherited)
→
Welsh
eirin
(cognate)
→
Latvian
oga
(cognate)