Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
leitón
←
Spanish
lechón
(cognate)
←
Galician
leite
(suffix)
←
Galician
ón
(suffix)
←
Portuguese
leitão
(cognate)
←
Old Portuguese
leiton
(inherited)
→
Portuguese
leitão
(cognate)