Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
клеть
←
Proto-Slavic
*klětь
(inherited)
→
Latvian
klēts
(cognate)
→
Russian
клетушка
(affix)