Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
luaidhe
←
Proto-Celtic
*ɸloudom
(inherited)
←
Scottish Gaelic
luaidheach
(link)
←
Old Irish
lúaide
(inherited)