Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
cloicenn
←
Old Irish
cloch
(compound)
←
Old Irish
cenn
(compound)
→
Irish
cloigeann
(inherited)
→
Scottish Gaelic
claigeann
(inherited)