Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
substainteach
←
Irish
substaint
(suffix)
←
Irish
ach
(suffix)
←
Latin
substantia
(derived)
←
Old Irish
substaintech
(inherited)
←
Old Irish
substaint
(mention)