Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
grúdaigh
←
Old English
grūt
(derived)
←
Irish
grúdaire
(back-formation)
←
Irish
grúdlann
(link)
←
Middle Irish
grutt
(derived)
→
Irish
grúdlann
(affix)