Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ligurian
sonìfero
←
Proto-Indo-European
*swep-
(root)
←
Latin
somniferum
(derived)
←
Latin
somnifer
(mention)
←
Latin
somnus
(mention)
→
Ligurian
séunno
(link)