Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sinsear
←
Old Irish
sinser
(inherited)
→
Irish
sinsearacht
(suffix)
→
Irish
sinsearach
(suffix)
→
Irish
sinseartha
(suffix)
→
Irish
sinnseardha
(suffix)