Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
áel
←
Proto-Germanic
*ēlō
(cognate)
←
Sanskrit
आरा
(cognate)
←
Old Irish
áel
(inherited)
→
Irish
adhal
(inherited)