Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
openung
←
Old English
openian
(suffix)
←
Old English
ung
(suffix)
←
Old High German
offanunga
(cognate)
→
Old High German
offanunga
(cognate)