Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
srincne
←
Welsh
-en
(cognate)
←
Irish
-ne
(mention)
←
Old Irish
sringcne
(inherited)
←
Old Irish
sreng
(mention)