Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
Conwy
←
Old Welsh
Cynwy
(inherited)
←
Old Welsh
cyn
(mention)
←
Old Welsh
gwy
(mention)
→
English
Conway
(derived)
→
English
Conwy
(derived)