Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
delysg
←
Breton
tellesk
(cognate)
←
Proto-Celtic
[[*dolisko-]], [[*dulisko-]]
(inherited)
←
Proto-Celtic
[[*dol-]], [[*dulā-]], [[*duljo-]]
(mention)
←
Welsh
dail
(mention)
←
Irish
duileasc
(cognate)
→
English
dulse
(cognate)
→
Irish
duileasc
(cognate)