Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
ki
←
Proto-Brythonic
*ki
(inherited)
←
Proto-Celtic
*kū
(inherited)
←
Proto-Indo-European
*ḱwṓ
(inherited)
→
Breton
kiez
(suffix)
→
Breton
dourgi
(compound)
→
Breton
gwadgi
(compound)
→
French
Tanguy
(mention)