I don't think the ending of Viis names relates to occupation. The NPC that leads the FATE chain with her two companions (I think Myalna is her name) doesn't follow this convention and Taina who (from dialogue put together from various stages in the story) is a patrol mainly for the temple grounds. Also Ciulle seems to be a cook or kitchen hand while Korille references her patrols and Lanille is a senior shaman. I think the names have a language significance and the suffixes may actually mean something.