Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
guirid
←
Proto-Celtic
*gʷereti
(inherited)
←
Proto-Indo-European
*gʷʰer-
(root)
→
English
Gourock
(derived)
→
Old Irish
fogeir
(affix)