Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Dutch
Komen
←
Gaulish
*cumma
(derived)
←
Gaulish
*cumba
(mention)
←
Proto-Celtic
*kumbā
(derived)
←
Latin
Comius
(derived)
←
Latin
-inas
(mention)