Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*swā-n-
→
Catalan
sa
(derived)
→
Spanish
sano
(derived)
→
French
sain
(derived)
→
Italian
sano
(derived)
→
Latin
sanus
(derived)
→
Dutch
sun
(derived(nl/id))
→
Dutch
zoen
(derived)
→
Portuguese
são
(derived)