Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*wegyeti
→
Welsh
gwau
(inherited)
→
Irish
figh
(inherited)
→
Scottish Gaelic
figh
(inherited)
→
Manx
fee
(inherited)