Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
adain
←
Proto-Celtic
*ɸatanī
(inherited)
←
Proto-Celtic
*ɸetnos
(mention)
←
Welsh
adar
(mention)
←
Welsh
edn
(mention)
←
Old Irish
ette
(cognate)
→
Welsh
adar
(mention)
→
Welsh
edn
(mention)
→
Welsh
adeiniog
(affix)