Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
pentadeca-
←
Ancient Greek
πέντεδεκα
(mention)
→
English
pentadecamer
(affix)
→
English
trecadrine
(affix)