Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
protagonist
←
English
prot
(prefix)
←
English
agonist
(prefix)
←
Ancient Greek
πρωταγωνιστής
(derived)
←
Ancient Greek
πρῶτος
(mention)
←
Ancient Greek
ἀγωνιστής
(mention)
→
English
protagonistic
(suffix)
→
English
nonprotagonist
(prefix)
→
English
protagon
(mention)
→
English
coprotagonist
(prefix)