Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Maltese
elmu
←
English
helmet
(derived)
←
Proto-Germanic
*helmaz
(derived)
←
Italian
elmo
(derived)
←
Latin
helmus
(derived)
←
Sicilian
elmu
(derived)