Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
syn
←
Proto-Balto-Slavic
*sū́ˀnus
(inherited)
←
Proto-Indo-European
*suHnús
(inherited)
←
Proto-Slavic
*synъ
(inherited)
←
Old Czech
syn
(inherited)
→
Czech
synův
(suffix)
→
Czech
synek
(affix)