Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*dʰergʰ-
→
Breton
draen
(inherited)
→
Breton
draen
(inherited(br/cy))
→
Scottish Gaelic
droigheann
(inherited)