Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
viga
←
Catalan
biga
(cognate)
←
Spanish
viga
(cognate)
←
Latin
bīga
(derived)
←
Latin
bīga
(derived(pt/es))
←
Occitan
biga
(cognate)
→
Catalan
biga
(cognate)
→
Spanish
viga
(cognate)
→
Portuguese
bigode
(mention)