Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
aodh
←
Proto-Celtic
*aidus
(inherited)
←
Ancient Greek
αἰθήρ
(cognate)
←
Proto-Indo-European
*h₂eydʰ-
(derived)
←
Old Irish
áed
(inherited)
→
English
Hagan
(mention)