History:
Its likely a newer name, maybe unique to a family or region. The cool thing is, this names individuality makes it special. Its unlike common names with long histories.
Description:
I checked lots of different languages and couldnt find it.
This name speaks of deep faith. Its tied to a mighty god, whose representative is incredibly important. The link to this god is key to understanding this names meaning.
We can guess at shorter versions, like Karshi or Bena. There might also be slightly different spellings, maybe Karsheena, depending on how people say it. Nicknames are also possible, but its tough to say what those might be.
