Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
soraidh
←
Old Irish
soraid
(inherited)
←
Old Irish
so-
(affix)
←
Old Irish
réid
(affix)
→
Welsh
hyrwyddo
(mention)