[Middle English resulten, from Medieval Latin resultre, from Latin, to leap back, frequentative of resilre : re-, re- + salre,to leap; see sel- in Indo-European roots.]
[Middle English, from Old French, from reporter, to report, from Latin reportre : re-, re- + portre, to carry; see per-2 in Indo-European roots.]
I have no trouble accepting them as prefixes since that's how they started. I think it would depend on the purpose of the analysis though.
I'd call the English word "result" one morpheme if I were doing a morphological analysis of the word.
Which "English book" said this?
Student or Learner