Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Friulian
doi
←
Dalmatian
doi
(cognate)
←
Spanish
dos
(cognate)
←
French
deux
(cognate)
←
Italian
due
(cognate)
←
Latin
duo
(inherited)
←
Ladin
doi
(cognate)
←
Romanian
doi
(cognate)
→
Romanian
doi
(cognate)