Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
cruimh
←
Proto-Celtic
*kʷrimis
(inherited)
←
Proto-Indo-European
*kʷŕ̥mis
(inherited)
←
Old Irish
cruim
(inherited)
→
Irish
cruimheach
(affix)