Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
cep
←
Proto-Slavic
*cěpъ
(inherited)
→
Lower Sorbian
cepy
(cognate)
→
Polish
cepisko
(affix)