Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
companha
←
Spanish
compaña
(cognate)
←
French
compagnon
(mention)
←
Galician
compaña
(cognate)
←
Italian
compagnone
(mention)
←
Latin
(mention)
←
Latin
compāniō
(mention)
←
Latin
cum
(mention)
←
Latin
pānis
(mention)
←
Old Portuguese
companna
(mention)
→
Spanish
compaña
(cognate)
→
Galician
compaña
(cognate)
→
Portuguese
acompanhar
(affix)
→
Portuguese
companheiro
(suffix)