Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
eachtar
→
Irish
eachtarshuíomh
(prefix)
→
Irish
eachtarchríoch
(prefix)
→
Irish
eachtarchine
(prefix)
→
Irish
eachtarghréine
(prefix)
→
Irish
eachtarshuigh
(prefix)