Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
четꙑре
←
Proto-Indo-European
*kʷetwóres
(derived)
←
Proto-Slavic
*četyre
(inherited)
→
Latvian
četri
(cognate)
→
Sanskrit
चतुर्
(cognate)