Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
flathon
←
Middle English
flathe
(doublet)
←
Latin
flado
(mention)
→
English
flathon
(inherited)
→
Middle English
flathe
(doublet)