Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
klapać
←
Polish
kłapać
(doublet)
←
Proto-Slavic
*klapati
(inherited)
→
Polish
klapka
(link)
→
Polish
klapek
(suffix)
→
Polish
kłapać
(doublet)
→
Polish
klapnąć
(suffix)