Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*gutus
→
Irish
guth
(inherited)
→
Scottish Gaelic
guth
(inherited)
→
Ancient Greek
Γέτης
(derived)
→
Manx
goo
(inherited)