Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*aukô
→
English
eke
(inherited)
→
English
ean
(inherited)
→
Old English
eaca
(inherited)
→
Old English
iecan
(cognate)