Learn English – Are there prefixes which have the meaning ‘originating from within’, or ‘originating from outside’

prefixes

I'm looking for prefixes which mean that something emanates/flows/comes from inside / outside, as opposed to existing / being located inside' ('endo-'), or 'existing / being located outside' ('exo-').

Thanks.

Best Answer

extra-
prefix: extra-
outside; beyond.
"extracellular"
beyond the scope of.
"extracurricular"

intra-
prefix
(added to adjectives) on the inside; within.
"intramural"