Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
thalassocracy
←
Ancient Greek
θαλασσοκρατέω
(derived)
←
Ancient Greek
θάλασσα
(mention)
←
Ancient Greek
κράτος
(mention)