Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Greek
έλικα
←
Greek
έλικας
(doublet)
←
Greek
έλικας
(link)
←
Ancient Greek
ἕλιξ
(inherited)
←
Proto-Indo-European
*welH-
(derived)
→
Greek
έλικας
(doublet)
→
Greek
έλικας
(link)