Chris is correct.

The ancient Egyptians didn't use the word "Orion". They wrote "sAH", and we have interpreted that as Orion. We do not know how many of the stars in the modern constellation, "Orion", that they may have been referencing with this term. There are areas of uncertainty, as with any interpretation of this nature. The concensus, however, is that at least the 3 belt stars were considered to be "sAH".

Anthony

You can lead a horse to water but you can't make him think.