Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Istro-Romanian
ur
←
Proto-Indo-European
*óynos
(inherited)
←
Old Latin
oinos
(inherited)
←
Proto-Italic
*oinos
(inherited)
←
Latin
ūnus
(inherited)
←
Romanian
un
(cognate)