Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
četiri
←
Proto-Indo-European
*kʷetwóres
(derived)
←
Proto-Slavic
*četyre
(inherited)
→
Serbo-Croatian
četvorica
(link)
→
Albanian
katër
(cognate)