Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
elektro
→
German
elektronegativ
(prefix)
→
German
Elektromagnetismus
(prefix)
→
German
Elektromobilität
(prefix)
→
German
Elektrochemie
(prefix)