Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
rhosyn
←
Welsh
rhos
(suffix)
←
Welsh
yn
(suffix)
←
Latin
rosa
(derived)
→
Welsh
rhosod
(affix)
→
Welsh
rhosynnau
(affix)