Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*ǵérh₂onts
→
Greek
γέρος
(inherited)
→
Ancient Greek
γέρων
(inherited)
→
Ossetian
зӕронд
(inherited)
→
Sanskrit
जरत्
(inherited)
→
Old Armenian
ծերուն
(inherited)