Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
touciño
←
Spanish
tocino
(cognate)
←
Proto-Indo-European
*tewh₂-
(root)
←
Proto-Indo-European
*tewh₂-
(derived)
←
Portuguese
toucinho
(cognate)
→
Aragonese
tozino
(link)
→
Galician
touciño entrefebrado
(mention)