Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
octadeca
→
English
octadecane
(confix)
→
English
octadecagon
(confix)
→
English
octadecapeptide
(prefix)
→
English
octadecahydrate
(prefix)
→
English
octadecacopper
(prefix)
→
English
octadecahedron
(confix)