Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
czoło
←
Proto-Slavic
*čelo
(inherited)
→
Lower Sorbian
coło
(cognate)
→
Lithuanian
kalnas
(cognate)
→
Polish
naczółek
(affix)
→
Polish
czołówka
(affix)
→
Polish
czołowy
(affix)
→
Polish
czelny
(affix)
→
Polish
czołobitny
(affix)