Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
nobiscum
←
Proto-Indo-European
-
(cognate)
←
Proto-Indo-European
*ḱóm
(mention)
←
Latin
nōbīs
(mention)
←
Latin
nōs
(mention)
←
Latin
cum
(mention)
←
Latin
mēcum
(mention)
→
Latin
-cum
(link)
→
Portuguese
conosco
(inherited)