Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
meþe
←
Proto-Germanic
*mōþijaz
(derived)
←
Proto-Germanic
*mōþaz
(mention)
←
Proto-West Germanic
*mōþī
(inherited)