Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
caoimhe
←
Irish
caomh
(mention)
←
Proto-Indo-European
*ḱey-
(root)
←
Old Irish
caíme
(inherited)
←
Old Irish
cóem
(mention)