Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Hellenic
*heptə́
→
Greek
επτά
(inherited)
→
Ancient Greek
ἑπτά
(inherited)
→
Kalo Finnish Romani
efta
(derived)
→
Romani
efta
(derived)