Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
deka
→
English
dekagram
(prefix)
→
English
dekastere
(prefix)
→
English
dekagramme
(prefix)
→
English
dekadarchy
(confix)