Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
Cristendom
←
Old English
crīstendōm
(inherited)
←
Middle English
Cristen
(affix)
←
Middle English
-dom
(affix)