Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
dáir
←
Proto-Celtic
*daryeti
(inherited)
←
Proto-Indo-European
(inherited)
←
Proto-Indo-European
*dʰerh₃-
(mention)
←
Middle Irish
dair
(inherited)
←
Old Irish
dáir
(inherited)
→
Irish
athdháir
(prefix)