Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
skupić
←
Polish
skupisko
(link)
←
Polish
s-
(affix)
←
Polish
kupić
(affix)
←
Proto-Slavic
*sъkupiti
(inherited)
→
Polish
skup
(link)
→
Polish
skupina
(suffix)
→
Polish
Skupny
(mention)
→
Polish
skupisko
(affix)
→
Polish
skupienie
(suffix)
→
Polish
skupiać
(suffix)