Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
elmo
β
Proto-Germanic
*helmaz
(derived)
β
Gothic
π·πΉπ»πΌπ
(derived)
β
Old Portuguese
elmo
(inherited)