Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
con
←
Proto-Indo-European
*ḱóm
(inherited)
←
Proto-Italic
*kom
(inherited)
←
Latin
cum
(inherited)
→
Corsican
cù
(cognate)
→
Italian
collo
(affix)
→
Italian
colla
(cognate)
→
Italian
colle
(affix)
→
Italian
corrispettivo
(prefix)
→
Italian
concorrere
(prefix)
→
Italian
concrescere
(prefix)
→
Italian
convivere
(prefix)
→
Italian
conficcare
(prefix)
→
Italian
concittadino
(prefix)
→
Italian
combaciare
(prefix)
→
Italian
concentrico
(confix)
→
Italian
condirettore
(prefix)
→
Italian
compossibile
(prefix)
→
Italian
conciossiaché
(compound)
→
Italian
condebitore
(prefix)
→
Italian
condirezione
(prefix)
→
Italian
condirettrice
(prefix)
→
Italian
convalligiano
(prefix)
→
Sardinian
cun
(cognate)
→
Venetian
co
(cognate)