Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
σός
←
Proto-Indo-European
*twós
(inherited)
←
Latin
tuus
(cognate)
←
Old Armenian
քո
(cognate)
→
Old Armenian
քո
(cognate)