Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
ethe
←
Old English
īeþe
(inherited)
←
Proto-West Germanic
*auþī
(inherited)
→
English
easy
(derived)
→
English
eath
(inherited)
→
Middle English
eth-
(mention)
→
Yola
eeth
(inherited)