Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
feadair
←
Proto-Celtic
*windeti
(derived)
←
Proto-Indo-European
*weyd-
(derived)
←
Old Irish
·fitir
(inherited)
←
Old Irish
ro·fitir
(mention)
←
Old Irish
ro·finnadar
(mention)