Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
achtana-
←
Ancient Greek
ἀκτῑ́ς
(derived)
→
Irish
achtanaiméadracht
(affix)
→
Irish
achtanaiméadar
(affix)
→
Irish
achtanasón
(affix)
→
Irish
achtanach
(affix)