Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
ou
←
Old French
ou
(inherited)
←
Latin
aut
(inherited)
→
French
où
(mention)
→
French
voyou
(suffix)
→
French
mais où est donc Ornicar
(link)
→
Middle French
où
(mention)
→
Ido
od
(borrowed)