Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Dalmatian
mais
←
Spanish
mes
(cognate)
←
French
mois
(cognate)
←
Italian
mese
(cognate)
←
Latin
mensis
(inherited)
←
Portuguese
mês
(cognate)
←
Romansch
mais
(cognate)