Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gwaladr
←
Proto-Brythonic
*gwaladr
(inherited)
←
Proto-Celtic
*walatros
(inherited)
←
Proto-Indo-European
*h₂welh₁-
(derived)