Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
tosaigh
←
Irish
tosnaigh
(alter)
←
Irish
tosach
(link)
←
Irish
tús
(link)
←
Old Irish
tosaigid
(inherited)
←
Old Irish
tosach
(mention)