Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
dek du
→
Esperanto
dek-dua
(affix)
→
Esperanto
dekduedro
(compound)
→
Esperanto
dekdulatero
(compound)
→
Esperanto
dekduuma
(suffix)
→
Esperanto
dekduo
(affix)
→
Esperanto
dekdujara
(affix)