Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
cystan
←
Old English
cyst
(affix)
←
Old English
-ian
(affix)
→
Old English
cost
(cognate)
→
Old English
costian
(cognate)