Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
dopomnieć
←
Polish
do
(prefix)
←
Polish
pomnieć
(prefix)
→
Lower Sorbian
dopomnjeś
(cognate)
→
Polish
dopominać
(suffix)