Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
ernaid
←
Proto-Celtic
*ɸarnati
(inherited)
←
Ancient Greek
ἔπορον
(cognate)
←
Proto-Indo-European
*perh₃-
(derived)
→
Irish
rath
(cognate)
→
Ancient Greek
ἔπορον
(cognate)