Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
cana
←
Latin
canis
(derived)
←
Old Irish
cano
(inherited)
←
Old Irish
cana
(mention)
→
Irish
cana
(inherited)