Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*wlatis
→
Breton
glad
(inherited)
→
Welsh
gwlad
(inherited)
→
Irish
flaith
(inherited)
→
Manx
flah
(inherited)
→
Old Welsh
gulat
(inherited)
→
Old Irish
flaith
(inherited)