Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
fothrópaiceach
←
Irish
fo-
(affix)
←
Irish
trópaiceach
(affix)
←
Manx
fo-hropickagh
(cognate)
→
Manx
fo-hropickagh
(cognate)