Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
mastro
←
Old French
mast
(derived)
←
Proto-Germanic
*mastaz
(derived)
←
Old Portuguese
masto
(inherited)
←
Old Portuguese
maste
(mention)