Ibais

Could you clarify what you mean by "ibais"? It is not a widely recognized term in English, and I want to ensure I provide an accurate, neutral wiki-style article. Do you mean:

- a Basque given name (for example, related to Ibai, meaning “river”),

- a surname or place name,

- an acronym or organization abbreviated as IBAIS,

- or a fictional or thematic concept?

If you can specify the intended sense (and any preferred region or sources), I will draft a concise, neutral article (under 300 words) without formatting.