Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
astronomer
←
English
astronomy
(suffix)
←
English
er
(suffix)
←
Middle English
astronomer
(inherited)
→
English
nonastronomer
(prefix)
→
English
archaeoastronomer
(prefix)
→
English
radioastronomer
(prefix)
→
English
bioastronomer
(prefix)
→
English
ethnoastronomer
(prefix)
→
English
astronomeress
(suffix)