Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
adhfhuathaigh
←
Old Irish
adúathaigid
(inherited)
←
Old Irish
adúath
(mention)
←
Old Irish
adḟúath
(mention)
←
Old Irish
ad
(mention)
←
Old Irish
úath
(mention)