Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
octarchy
←
English
octo-
(compound)
←
English
-archy
(compound)
←
English
heptarchy
(mention)
→
English
octarchic
(suffix)