Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
koupat
←
Proto-Slavic
*kǫpati
(inherited)
→
Czech
koupel
(affix)
→
Czech
koupaliště
(suffix)
→
Czech
koupání
(affix)