Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
algă
←
French
algue
(borrowed)
←
Proto-Indo-European
*alg-
(mention)
←
Proto-Indo-European
*alǵ-
(mention)
←
Latin
alga
(mention)