Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
Lochlann
←
Irish
loch
(affix)
←
Irish
-lann
(affix)
←
Old Irish
Lochlann
(inherited)
→
Irish
Lochlannach
(affix)
→
Irish
Lochlannais
(affix)