Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
trabalinguas
←
Spanish
trabalenguas
(cognate)
←
Galician
trabar
(compound)
←
Galician
lingua
(compound)
←
Portuguese
trava-língua
(cognate)