Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
říje
←
Proto-Slavic
*řuti
(inherited)
←
Old Czech
řúje
(inherited)
←
Old Czech
řúti
(link)
→
Czech
říjen
(affix)