Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
demersus
←
Latin
dēmergō
(mention)
→
English
demerse
(mention)
→
English
demersal
(mention)
→
Neapolitan
demierto
(derived)