Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
gobelete
←
Gaulish
*gobbos
(derived(fr/gl))
←
Proto-Celtic
*gobbos
(derived(fr/gl))
←
Old French
gobel
(derived(fr/gl))
←
Proto-Indo-European
*ǵoph₃o-
(derived(fr/gl))
←
Old Occitan
gobel
(derived(fr/gl))