Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
adormilar
→
Spanish
adormilamiento
(affix)
→
Galician
adormiñar
(cognate)
→
Galician
adurmiñar
(cognate)