Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
trew
←
Old English
trēo
(inherited)
←
Old English
trēow
(mention)
←
Old English
trīewe
(inherited)
→
English
tree
(mention)
→
Middle English
trewe
(alter)