Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Irish
grend
←
Breton
grann
(cognate)
←
Proto-Celtic
*grendo-
(inherited)
←
Welsh
gran
(cognate)
←
Proto-Indo-European
*gʰren-
(derived)
←
Russian
грань
(cognate)
→
Spanish
greña
(cognate)