Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
éan
←
Proto-Celtic
*ɸetnos
(inherited)
←
Old Irish
én
(inherited)
→
West Frisian
fear
(cognate)
→
Irish
éaneolaí
(affix)
→
Irish
éaneolaíocht
(affix)
→
Irish
éanlann
(affix)
→
Irish
firéan
(affix)
→
Irish
éaneolaíoch
(affix)
→
Irish
éinín
(affix)
→
Irish
duibhéan
(affix)