Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
de
→
Middle Irish
bachlachda
(suffix)
→
Middle Irish
saegulta
(affix)
→
Middle Irish
dóenda
(suffix)
→
Middle Irish
ainmide
(suffix)