Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
penumbral
←
English
penumbra
(suffix)
←
English
al
(suffix)
→
English
nonpenumbral
(prefix)
→
English
extrapenumbral
(prefix)