Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cyntefin
←
Welsh
Alban Cyntefin
(link)
←
Welsh
cyntaf
(compound)
←
Welsh
-in
(compound)
←
Welsh
(compound)
←
Old Irish
cétamuin
(cognate)
→
Welsh
Alban Cyntefin
(compound)