Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
rugi
←
French
rugir
(mention)
←
French
rut
(doublet)
←
Latin
rugītus
(borrowed)
→
French
rut
(doublet)