Could you please clarify what you mean by "sipa"?
For example, are you referring to:
* Sipa, a village in India? If so, it's in the state of Uttar Pradesh.
* Sipa, a village in South Africa? This one is in the Northern Cape.
* Sipa, a type of food? There are different dishes that go by this name, such as a type of Filipino stew or a South Asian pancake.
* Sipa, a word in another language? If so, please tell me which language you're asking about.
Once you tell me which "sipa" you're interested in, I can tell you more about its origins.