Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Spanish
suenno
←
Proto-Indo-European
*swépnos
(derived)
←
Proto-Indo-European
*swep-
(mention)
←
Latin
somnium
(inherited)
←
Latin
somnus
(mention)
→
Spanish
sueño
(inherited)
→
Spanish
sueño
(inherited)