Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
dían
←
Proto-Celtic
*dēnos
(inherited(ga/sga))
←
Proto-Indo-European
*deyh₁-
(derived(ga/sga))