Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
col
←
Proto-Celtic
*kulom
(inherited)
←
Old Irish
col
(inherited)
→
Irish
col ceathar
(mention)
→
Irish
colscaradh
(affix)