Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
rhaid
←
Latin
ratiō
(borrowed)
→
Welsh
afraid
(prefix)
→
Welsh
rheidrwydd
(suffix)
→
Welsh
rheidiol
(affix)