Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
duodecade
←
English
duodeca-
(affix)
←
English
-ad
(affix)
←
English
decade
(mention)
←
English
duo-
(affix)
←
English
decade
(affix)