Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
buk
←
Proto-Indo-European
*bʰeh₂ǵos
(derived)
←
Proto-Slavic
*bukъ
(inherited)
→
Czech
bukový
(affix)
→
Lower Sorbian
buk
(cognate)