Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
lacune
←
French
lagune
(doublet)
←
Latin
lacūna
(borrowed)
→
English
lacune
(derived)
→
French
lagune
(doublet)
→
French
lacunaire
(suffix)
→
Romanian
lacună
(borrowed)