Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
umbecast
←
English
um
(prefix)
←
English
cast
(prefix)
←
English
um
(prefix)
←
English
becast
(prefix)
←
Middle English
umbecasten
(inherited)