Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
čelo
←
Proto-Indo-European
*kelh₃os
(derived)
←
Proto-Slavic
*čelo
(inherited)
→
Czech
náčelník
(affix)
→
Czech
čelní
(affix)
→
Czech
čelit
(affix)
→
Czech
čelenka
(affix)
→
Lower Sorbian
coło
(cognate)