Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
chuchar
←
Italian
ciucciare
(cognate)
←
Venetian
ciuciar
(cognate)
→
Galician
chucho
(back-formation)
→
Galician
chuchamel
(compound)