Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*mailos
→
Breton
moal
(inherited)
→
Welsh
moel
(inherited)
→
Irish
maol
(inherited)
→
Scottish Gaelic
maol
(inherited)
→
Old Irish
máel
(inherited)