Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ildánach
←
Irish
il-
(affix)
←
Irish
dán
(affix)
←
Irish
-ach
(affix)
←
Old Irish
ildánach
(inherited)