Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
Brandán
←
Proto-Celtic
*brigantīnos
(derived)
←
Proto-Celtic
*brigantī
(mention)
←
Irish
Bréanainn
(derived)
←
Latin
Brendanus
(derived)
←
Old Welsh
breenhin
(derived)
←
Old Irish
Brénainn
(derived)