Isaac | Vocabulary and ambiguity

Hi, this probably came up before, but I couldn't find it:
I think the vocabulary of LFN is a work of art; very well designed and melodious. The one flaw I see is considering final vowel as part of the root. This causes problems when we attach suffixes:

vole/vola: does volor mean a "pilot" or a "wisher"?
fama/fame: does fami mean to "go hungry" or to "get famous (vi)"?
proba: does probable mean "probable, likely" or "testable"?

Do you consider this a problem? Or am I missing something?

Isaac