Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
acanta-
←
Ancient Greek
ἄκανθος
(derived)
←
Ancient Greek
ἄκανθα
(mention)
→
Irish
acantóideach
(affix)
→
Irish
acantas
(affix)