Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
уныть
←
Old East Slavic
оуныти
(inherited)
←
Russian
у-
(affix)
←
Russian
ныть
(affix)
←
Proto-Slavic
*nyti
(derived)