Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
idem
←
Middle English
idem
(inherited)
←
Latin
idem
(derived)
→
English
identity
(mention)
→
English
idempotent
(compound)
→
English
idempotence
(compound)