Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Greek
σκληρός
←
Ancient Greek
σκληρός
(inherited)
→
Greek
σκελετός
(cognate)
→
Greek
σκληρότητα
(suffix)