Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Celtic
*ɸlārom
→
Welsh
llawr
(inherited)
→
Irish
lár
(inherited)
→
Galician
leira
(derived)
→
Old Irish
lár
(inherited)