Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
aderyn
←
Welsh
adar
(affix)
←
Welsh
-yn
(affix)
→
English
aberdevine
(derived)
→
English
Penderyn
(mention)