Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
doras
←
Proto-Celtic
*dworestus
(inherited)
←
Proto-Indo-European
*dʰwer-
(root)
←
Proto-Indo-European
*dʰwer-
(derived)
←
Old Irish
dorus
(inherited)
→
Scottish Gaelic
dor-dhuille
(compound)