Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ród
←
Welsh
rhawd
(cognate)
←
Old Irish
rót
(inherited)
→
Irish
iarnród
(prefix)
→
Irish
seachród
(affix)