Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
matemático
←
Ancient Greek
μαθηματικός
(derived)
←
Ancient Greek
μάθημα
(mention)
←
Latin
mathēmaticus
(derived)
→
Galician
matematicamente
(affix)