Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
creideamh
←
Proto-Celtic
*kreddīti
(inherited(sga/ga))
←
Proto-Indo-European
*ḱréddʰh₁eti
(inherited(sga/ga))