Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cost
←
English
cost
(borrowed)
→
Welsh
prifgost
(affix)
→
Welsh
costau
(affix)
→
Welsh
costio
(suffix)