Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
spéis
←
Latin
pēnsum
(derived)
←
Middle Irish
spéis
(inherited)
→
Irish
féinspéis
(affix)
→
Irish
spéisiúil
(suffix)