Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
sour
←
Old English
sūr
(inherited)
←
English
sour
(link)
←
Middle English
sower
(alter)
←
Middle English
soure
(alter)
←
Middle English
sowre
(alter)
←
Old French
essorer
(borrowed)
→
English
sour
(inherited)