Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
dulce
←
English
douce
(mention)
←
English
doux
(doublet)
←
English
dulse
(mention)
←
Middle English
douce
(inherited)
←
Middle English
doucen
(inherited)
←
Old French
douz
(derived)
←
Old French
douce
(mention)
→
English
doux
(doublet)
→
English
dulceness
(suffix)