Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
reth
←
Old English
rēþe
(inherited)
←
Proto-Germanic
*rōþijaz
(inherited)
→
English
rethe
(inherited)
→
Middle English
rethnes
(affix)