Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
послать
←
Russian
по-
(affix)
←
Russian
слать
(affix)
←
Proto-Slavic
*posъlati
(inherited)
→
Czech
poslat
(cognate)