Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
éanlaith
←
Middle Irish
énlaith
(inherited)
←
Middle Irish
énḟlaith
(mention)
←
Old Irish
én
(derived)
←
Old Irish
flaith
(mention)