Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
rzęsa
←
Proto-Slavic
*ręsa
(inherited)
→
Polish
Rzęsa
(mention)
→
Polish
rzęska
(affix)
→
Polish
rzęsisty
(suffix)