Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
tratar
←
Proto-Indo-European
*tragʰ-
(derived)
←
Latin
tractāre
(learned borrowing)
←
Latin
tractō
(mention)
←
Latin
tractus
(mention)
←
Latin
trahō
(mention)
→
Galician
tratado
(mention)
→
Galician
tratamento
(suffix)