Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
hæt
→
English
hat
(inherited)
→
Middle English
hat
(inherited)
→
Middle English
hatte
(inherited)
→
Irish
hata
(derived)