Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
enxurro
→
Galician
zurro
(cognate)
→
Galician
xurro
(cognate)
→
Galician
zudre
(cognate)
→
Portuguese
enxurrada
(suffix)