I'm developing a heavily prefixing language, and I'm trying to work out a lemma/citation form for my verbs. However, nearly all forms of the verb have a prefix. For example, the verb "to go" has the stem m(a), but the standard infinitive is um, the first-person singular standing conjugation is irim, and the participle is ënda.
Obviously, the latter is wholly unsuitable as a lemma because it has a tendency to set off a number of phonological processes that can cause the stem to get lost, I don't really want to list words under any of these forms in my dictionary, because if I do, I'll end up with all of my verbs listed in the lexicon under "u," "i," or "e."