Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
četa
←
Proto-Slavic
*četa
(inherited)
→
Czech
četař
(affix)
→
Czech
četník
(affix)
→
Russian
чета
(mention)